EP4363184A1 - Beleuchtungsvorrichtung für fahrzeuge sowie herstellungsverfahren und werkzeug - Google Patents
Beleuchtungsvorrichtung für fahrzeuge sowie herstellungsverfahren und werkzeugInfo
- Publication number
- EP4363184A1 EP4363184A1 EP22731664.3A EP22731664A EP4363184A1 EP 4363184 A1 EP4363184 A1 EP 4363184A1 EP 22731664 A EP22731664 A EP 22731664A EP 4363184 A1 EP4363184 A1 EP 4363184A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- optical element
- volume
- light
- lighting device
- separating
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/03—Injection moulding apparatus
- B29C45/13—Injection moulding apparatus using two or more injection units co-operating with a single mould
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1603—Multi-way nozzles specially adapted therefor
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1634—Making multilayered or multicoloured articles with a non-uniform dispersion of the moulding material in the article, e.g. resulting in a marble effect
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/164—The moulding materials being injected simultaneously
-
- 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
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
-
- 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
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/235—Light guides
- F21S43/242—Light guides characterised by the emission area
- F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
-
- 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
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
- F21V3/0625—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics the material diffusing light, e.g. translucent plastics
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1603—Multi-way nozzles specially adapted therefor
- B29C2045/1614—Multi-way nozzles specially adapted therefor side-by-side flow of materials in the same channel
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C2045/1698—Making multilayered or multicoloured articles multicoloured articles moulded in one step
-
- 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
- F21S43/14—Light emitting diodes [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
- G02B6/0033—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
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0041—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided in the bulk of the light guide
-
- 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
Definitions
- the invention relates to a lighting device for vehicles with a light source and with an optical element for generating a predetermined light distribution, the optical element being designed as a multi-component injection-molded part with a first volume area containing a crystal-clear first material and with a second volume area containing a non-glass-clear second material.
- the invention relates to a method for producing an optical element according to a lighting device for vehicles with a light source and with an optical element for generating a predetermined light distribution, the optical element being designed as a multi-component injection-molded part with a first volume area containing a crystal-clear first material and with a second volume area containing a non-glass-clear second material and a tool for this according to claim 13.
- a lighting device for vehicles is known from DE 102011 002340 A1, which has a light source and an optical element for generating a predetermined light distribution.
- the optical element is designed as a flat light-guiding element with opposite flat sides, on which coupled-in light is totally reflected from a narrow light-coupling surface to an opposite narrow light-coupling surface.
- the light decoupling surface has a structure in the form of lens segments, so that a predetermined scattering of the decoupled light is ensured in an extension plane of the optical element.
- the lens segments can be produced by eroding or etching or by laser structuring.
- the optical element can be designed as a multi-component injection-molded part with a first volume area containing a transparent first material and with a second volume area containing a colored, non-transparent second material.
- a disadvantage of the production of the multi-component injection molded part is that separate tool mold spaces for the individual components are required, which increases tooling costs.
- two or more injection molding units are required, sequentially injecting material into a mold cavity. After a first injection molding unit has filled a mold space, the mold space halves must be moved so that the mold cavity for the injection molding of the second injection molding unit can be enlarged.
- the object of the present invention is therefore to further develop a lighting device for vehicles and a method for producing an optical element in such a way that the production effort can be reduced in a simple manner.
- the invention in connection with the preamble of patent claim 1 is characterized in that the second volume area has a light-scattering second material, wherein a separating surface and/or a separating line between the first volume area and the second volume area is formed with an arcuate course .
- the particular advantage of the lighting device according to the invention is that an optical element consisting of a crystal-clear first material and a light-scattering second material can be produced easily, specifically by means of co-injection of the materials from an injection unit into a single cavity of a mold.
- first volume area which has the crystal-clear first material
- second volume area which has the light-scattering second material.
- the first volume area and the second volume area lie directly next to one another, with a separating surface and/or a separating line having a continuous and/or arc-shaped course. Due to the fluidity of the injected materials in the time period between the start of the injection process and until the same has cooled down, there are no edges or cracks on the parting surface and/or on the parting line.
- the optical element Since the light-scattering second material is not transparent, the optical element has a two-tone appearance, with the second volume area with the light-scattering second material ensuring that the light coupled out by the optical element is coupled out according to a predetermined scattering to generate the light distribution.
- separating surfaces and/or separating lines have a non-regular course or a non-regular structure.
- separating surfaces are formed which narrow and widen again, or separating lines which run thread-like through a region of the optical element, for example a first volume region of the optical element formed by the first material.
- this results in a marbling of the optical element, which ensures a unique appearance of the same without impairing the optical properties.
- the required scattering of the light does not take place exclusively in a surface area of the optical element, but mainly in an area remote from the surface. ordered inner volume area of the optical element. The scattering effect is therefore not readily recognizable to an observer from the outside.
- the separating line and/or the separating surfaces between the volume areas form a connecting line or a connecting surface, which results from the integral connection of the first volume area to the second volume area. An artificially generated separation of these two volume areas is not intended.
- a plurality of first volume areas and a plurality of second volume areas are distributed in the optical element, with a proportion of the second volume area being selected in a total volume of the optical element such that light decoupled at a light decoupling surface of the optical element corresponds to a predetermined opening angle is decoupled in a first and/or in a second direction.
- a predetermined spread can advantageously be set, for example in a horizontal plane, which is required for a daytime running light function or a brake light function.
- a surface area of the second volume area on a total surface of the optical element is smaller than a surface area of the first volume area.
- the forced scattering of the light thus takes place mainly in an interior area of the optical element and not in a surface area of the same.
- the course of the surface portion and/or a volume portion of the first and/or second volume region is in the form of a smoke plume.
- the optical element advantageously gives the optical element a marbled appearance (novel design).
- the optics element is designed as a flat light guide element with a narrow-side light coupling surface and a narrow-side light coupling-out surface and opposite flat sides connecting the same, on which the coupled-in light is totally reflected. If the light is only to be coupled out on the narrow-side light coupling-out surface and not already on a flat side, the flat sides have a smooth surface.
- the light-guiding element thus has a simple geometric shape.
- the method according to the invention has the features of patent claim 11 in order to achieve the object.
- An optical element consisting of a crystal-clear material and a light-scattering material is advantageously produced in a simple manner by the coinjection method according to the invention.
- the first material and the second material are injected alternately and/or one after the other into the mold or into the mold space in a millisecond cycle. In this way, the distribution of the first material and the second material within the optical element can be influenced.
- the tool according to the invention has the features of claim 13 .
- the tool enables a simple structure, since only a single mold space (cavity) has to be provided.
- the distribution of the materials within the tool can be controlled by activation.
- FIG. 1 shows a plan view of a lighting device according to the invention
- FIG. 2 shows a side view of the lighting device.
- a lighting device for vehicles can be arranged in a front or rear area of a motor vehicle in order to generate a predetermined signal light function, for example daytime running lights, flashing lights or the like.
- the lighting device comprises a light source 1 and an optics element 2 which is positioned in front of the light source 1 .
- the light source 1 and the optical element 2 are arranged in a housing (not shown), for example a headlight or a rear light.
- the light source 1 is designed as a semiconductor-based light source, for example as an LED light source. If necessary, several light sources 1 can also be arranged, preferably on a common carrier 3 (printed circuit board).
- the optical element 2 is designed as a flat light guide element, which is plate-shaped and has a narrow-sided light coupling surface 4 on a side facing light source 1, a narrow-sided light coupling surface 5 on a side facing away from light source 1 and between the light coupling surface 4 and the light decoupling surface 5 has two opposite flat sides 6 and opposite narrow surfaces 7 .
- the flat sides 6 are large compared to the narrow-sided light coupling surfaces 4, light decoupling surfaces 5 and narrow surfaces 7.
- the light-guiding element 2 has a main part 8 and a secondary part 9 that is widened compared to the main part 8 .
- the side part 9 is arranged on a side facing the light source 1 .
- the secondary part 9 differs from the main part 8 in that the distances between the opposite flat sides 6 and the distance between the opposite narrow surfaces 7 are greater than in the main part 8 depth tH of the main part 8 running in the same direction.
- the planar light-guiding element 2 can also have a differently shaped secondary part 9 that is suitable, for example, for collimating the coupled-in light so that it runs more or less parallel in the direction of the light-coupling surface 5 .
- At least one of the flat sides 6 can be provided with decoupling elements, for example indentations, so that the light striking the same is totally reflected to the opposite flat side and emerges from this opposite flat side 6 .
- the light emerges from the flat side 6 in addition to or as an alternative to the narrow-sided light decoupling surface 5 .
- the optical element 2 is designed as a multi-component injection-molded part, which consists of a number of components or materials.
- the presence of the light-guiding elements 2 consists of two different materials, namely a crystal-clear first material 13 and a second light-scattering material 14.
- the crystal-clear material 13 is arranged in a first volume region 15 of the optical element 2, while the light-scattering material 14 is in a second Volume region 16 of the optical element 2 is arranged.
- a total volume of the optical element 2 exists in the present exemplary embodiment of a plurality of first volume areas 15 and a plurality of second volume areas 16.
- the optical element 2 is produced by means of a co-injection process, with the first material 13 and the second material 14 in liquid form being injected essentially simultaneously into a mold cavity of the tool, with the formation of a parting surface 17 and/or a parting line 18 being bonded to one another in a materially bonded manner .
- the parting surface 17 and/or the parting line 18 move during the injection process. Only when the first material 13 and the second material 14 have completely cooled down in the mold space are the parting surface 17 and the parting line 18 and the materials 13, 14 solid or fixed.
- the separating surfaces 17 or separating lines 18 have an arcuate course, at least in sections. They extend without edges and have a continuously differentiable course.
- a mixing nozzle can be used to inject the first material 13 and the second material 14 .
- a first nozzle for injecting the first material 13 and a second nozzle for injecting the second material 14 can also be provided.
- the first material 13 and the second material 14 can be injected alternately and/or one after the other into the mold space at a rate of milliseconds.
- the tool has only a single mold space, which reduces the manufacturing costs. All that is required is activation of the nozzles for injecting the first material 13 and the second material 14 so that the second volume region 16 filled with the second material 14 has the required proportion of a total volume of the optical element 2 .
- the second material 14 is designed as a light-scattering material, for example a diffusely acting material PMMA.
- the coupled-in light 12 striking the second material 14 can be scattered in such a way that at the light-coupling surface 5 a scattering in a plane of extension E of the optical element 2 extending opening angle cp1 and in a perpendicular to the extension plane E extending flat angle of aperture cp2 is radiated.
- the first opening angle f1 can run, for example, in a horizontal plane, while the second opening angle cp2 runs in a vertical plane.
- the opening angles cp1, cp2 are in a legally specified range.
- the proportion of the second volume region 16 (light-scattering material 14) in a total volume of the optical element 2 is selected such that the light is coupled out on the light coupling-out surface 4 in the predetermined opening angles f1, f2.
- the proportion of the second volume region 16 in the total volume of the optical element 2 is smaller than the proportion of the first volume region 15 in the optical element 2. The same applies to a surface proportion.
- a surface proportion of the second volume region 15 on a total surface of the optical element 2 is smaller than a surface proportion of the first volume region 15 on the total surface of the optical element 2.
- the course of the surface portion and/or the volume portion of the first volume region 15 and of the second volume region 16 can be designed at least partially in the shape of a smoke plume.
- the course of the second volume region 16 gives the optical element 2 the character or the appearance of a marbled luminous element.
- this marbling or coloring can be recognized by the second material 14 .
- the first material 13 can be formed, for example, as a crystal-clear PMMA material.
- the optical element 2 can also have more than two different materials 13, 14 are injected simultaneously in liquid form into a common mold cavity using the co-injection process.
- the optics element 2 can also have a different shape, for example, be elongate.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021116714.0A DE102021116714A1 (de) | 2021-06-29 | 2021-06-29 | Beleuchtungsvorrichtung für Fahrzeuge sowie Herstellungsverfahren und Werkzeug |
| PCT/EP2022/065194 WO2023274663A1 (de) | 2021-06-29 | 2022-06-03 | Beleuchtungsvorrichtung für fahrzeuge sowie herstellungsverfahren und werkzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4363184A1 true EP4363184A1 (de) | 2024-05-08 |
Family
ID=82115685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22731664.3A Pending EP4363184A1 (de) | 2021-06-29 | 2022-06-03 | Beleuchtungsvorrichtung für fahrzeuge sowie herstellungsverfahren und werkzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4363184A1 (de) |
| CN (1) | CN117580696A (de) |
| DE (1) | DE102021116714A1 (de) |
| WO (1) | WO2023274663A1 (de) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE368559T1 (de) * | 1997-04-16 | 2007-08-15 | Husky Injection Molding | Verfahren und gerät zur patiellen kristallisierung amorpher kunststoffgegenstände |
| DE19853106A1 (de) | 1998-11-18 | 2000-05-31 | Bayer Ag | Fluoreszierende, strukturierte Formkörper |
| DE10292319B4 (de) * | 2001-06-01 | 2012-03-08 | Daicel Chemical Industries, Ltd. | Lichtstreuender Film, ebene Lichtquellen-Einrichtung und Flüssigkristall-Anzeige-Vorrichtung, in denen er verwendet wird |
| EP1525597B9 (de) | 2002-08-01 | 2009-08-26 | Marquardt GmbH | Beleuchtbares werkstück |
| DE102011002340A1 (de) | 2011-04-29 | 2012-10-31 | Hella Kgaa Hueck & Co. | Beleuchtungsvorrichtung für Fahrzeuge |
| ITPD20130075A1 (it) * | 2013-03-25 | 2014-09-26 | Automotive Lighting Italia Spa | Dispositivo di illuminazione e/o segnalazione per veicoli e relativo metodo di realizzazione |
| DE102013105153B4 (de) * | 2013-05-21 | 2023-03-30 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge |
| DE102014103737B4 (de) * | 2014-03-19 | 2025-10-23 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge |
| EP3181401B1 (de) * | 2015-12-15 | 2022-03-30 | Volkswagen Aktiengesellschaft | Beleuchtungsvorrichtung für ein kraftfahrzeug |
| FR3048784B1 (fr) | 2016-03-10 | 2018-04-13 | Valeo Vision | Guide optique avec moyens optiques de dispersion de la lumiere |
| EP3301355B1 (de) * | 2016-09-28 | 2024-01-10 | Valeo Vision | Herstellungsverfahren einer lichtdiffusionseinheit, insbesondere für kraftfahrzeug |
| CZ2017398A3 (cs) * | 2017-07-10 | 2019-01-23 | Varroc Lighting Systems, s.r.o. | Optický systém pro světelné zařízení, zejména pro signální svítilnu pro motorová vozidla |
| US12420466B2 (en) * | 2019-09-19 | 2025-09-23 | Husky Injection Molding Systems Ltd. | Apparatus and method for coinjection of a multilayer molded article with a segmented internal layer |
-
2021
- 2021-06-29 DE DE102021116714.0A patent/DE102021116714A1/de active Pending
-
2022
- 2022-06-03 CN CN202280045677.XA patent/CN117580696A/zh active Pending
- 2022-06-03 EP EP22731664.3A patent/EP4363184A1/de active Pending
- 2022-06-03 WO PCT/EP2022/065194 patent/WO2023274663A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021116714A1 (de) | 2022-12-29 |
| CN117580696A (zh) | 2024-02-20 |
| WO2023274663A1 (de) | 2023-01-05 |
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