EP4409197A1 - Bloc optique de véhicule à guide multiple de lumière - Google Patents
Bloc optique de véhicule à guide multiple de lumièreInfo
- Publication number
- EP4409197A1 EP4409197A1 EP22768443.8A EP22768443A EP4409197A1 EP 4409197 A1 EP4409197 A1 EP 4409197A1 EP 22768443 A EP22768443 A EP 22768443A EP 4409197 A1 EP4409197 A1 EP 4409197A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light guides
- optical unit
- glass
- patterns
- junction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- F21S43/235—Light guides
- F21S43/236—Light guides characterised by the shape of the light guide
- F21S43/237—Light guides characterised by the shape of the light guide rod-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
- F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
-
- 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
-
- 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
- F21S43/27—Attachment thereof
-
- 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
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
- F21W2103/55—Daytime running lights [DRL]
Definitions
- TITLE Vehicle optical unit with multiple light guide
- the invention relates to the technical field of light guide optical units for vehicles.
- the invention finds its application in particular in optical units comprising at least one of the following lights: daytime running lights (“DRL” or “Daylight Dunning Damp”), position lights (also called “night lights”) , dipped beam headlights (also called “dipped beams”), main beam headlights (also called “headlights”), fog lights, rear lights, direction indicators.
- DRL daytime running lights
- position lights also called “night lights”
- dipped beam headlights also called “dipped beams”
- main beam headlights also called “headlights”
- a vehicle headlight unit comprising a housing and a lens comprising at least two transparent or translucent zones.
- the case and the glass essentially delimit a space in which are housed at least two light guides and a support on which the two light guides are arranged.
- the two light guides are each visible through one of the two transparent areas.
- the two light guides are interconnected by a junction sheet.
- the junction sheet and the two light guides form a one-piece element.
- the junction sheet has the advantage of avoiding the need for separate light guides (a solution which notably increases assembly time).
- good mechanical strength of the one-piece element comprising the junction sheet and the light guides is necessary, in particular during the ejection after molding of this one-piece element, as well as during handling, storage and assembly of it.
- the junction sheet must therefore have a mechanical function, in addition to that consisting in transmitting light as efficiently as possible.
- the junction layers designed to perform these functions are not aesthetic and it has been envisaged to place them in a technical volume of the optical unit masked by an element of the vehicle such as a bumper. But the greater the technical volume of the optical unit, the more other constraints and disadvantages have to be faced. For example, a large optical unit technical volume may not be compatible with the free space that must be left for pedestrian impacts, or even with the presence of other elements of the vehicle when the environment of these elements is already very constrained.
- the subject of the invention is a vehicle optical unit comprising a housing and a glass comprising at least two transparent zones, the housing and the glass essentially delimiting a space in which are housed at least two light guides and a support on which the two light guides are arranged, the two light guides each being visible through one of the two transparent zones, the two light guides being interconnected by a junction sheet, the junction sheet and the two light guides forming a one-piece element.
- the support comprises a first pattern in relief visible through the glass
- the junction ply has a second pattern in relief visible through the glass
- a gap provided between the junction ply and the support, is arranged between the first and second patterns.
- the presence of patterns visible on the sheet and on the support contributes to the stylistic signature of the vehicle and makes it possible to conceal the gap among these patterns. It then becomes possible to avoid hiding the junction strip and the technical volume of the optical unit can be reduced.
- optical unit according to the invention also optionally comprises one and/or the other of the following characteristics, each considered independently of one another or in combination of one or more others:
- At least one of the first and second patterns comprises recessed areas extending parallel to the interstice
- each of the two light guides extends in a longitudinal direction, and the recessed areas are periodically repeated in at least one of the two longitudinal directions along each of which one of the two light guides extends;
- the first and second patterns each comprise recessed areas, the recessed areas of the first and second patterns are repeated with the same periodicity
- the support comprises a recess defining a step between two planes and the web is housed in the recess so that the first and second patterns have an outer surface substantially in the same plane;
- a vehicle comprising an optical unit according to the invention.
- This vehicle includes a bumper and the junction sheet is not hidden by the bumper.
- the optical unit comprises an opaque strip positioned near, on, or in the glass so as to at least partially mask the gap, in a direction of observation, and the opaque strip is aligned with a pattern visible from the vehicle.
- transparent-e qualifies a material or an area of the glass that allows light to pass through and the objects behind it to appear; this also qualifies a zone that is sufficiently translucent to reveal the objects behind it. An object that is behind a transparent area is therefore "visible” through it.
- Figure 1 schematically shows in perspective, an example embodiment of an optical unit according to the invention.
- 2 schematically represents in perspective, the exemplary embodiment of the optical unit represented in FIG. 1, without its crystal and its mask.
- Figure 3 schematically represents in perspective the one-piece multi-guide element of the optical block shown in Figure 1.
- Figure 4 schematically represents in perspective a portion of the one-piece multi-guide element and its support, housed in the optical unit shown in Figure 1.
- Figure 5 schematically represents in section, in a longitudinal plane, a portion of an exemplary embodiment of an optical unit according to the invention.
- Figure 6 schematically represents in section, in a transverse plane, a portion of an exemplary embodiment of an optical block according to the invention.
- Figure 7 schematically shows, seen from above, a vehicle element under which is arranged an example embodiment of an optical unit according to the invention.
- FIG. 1 An example of a vehicle headlight unit 1, according to one embodiment of the present invention, is shown schematically in FIG. 1.
- the headlight unit 1 comprises a housing 2 and a glass 3.
- the glass 3 and the housing 2 form essentially closed.
- the box 2 is formed of a rigid and opaque material (for example a metal).
- the glass 3 is made of a rigid and transparent material.
- crystal 3 is two-tone, for example black and crystal.
- the glass 3 has three projecting regions 31. These projecting regions 31 are transparent.
- the optical unit 1 is intended to be placed behind one or more elements of the vehicle 100 (e.g. grille, bumper, bodywork, etc.) comprising slots 110 at the level of which the projecting regions 31 are visible (see Figure 7).
- a one-piece multi-guide element 4 of light and a support 5 are housed in the housing 2.
- the one-piece multi-guide element 4 is arranged on the support 5.
- the support 5 is formed of a molded plastic material, opaque and possibly colored.
- the one-piece multi-guide element 4 is made of a molded and transparent plastic material. Any color of the support 5 is therefore visible through the one-piece multi-guide element 4.
- the support 5 comprises a first pattern 51 in relief visible through the glass 3.
- This first pattern 51 forms a band comprising, for example, recessed areas 52 and projecting areas 53.
- the recessed areas 52 and the projecting areas 53 are arranged periodically along the longitudinal direction of the band.
- the one-piece multi-guide element 4 comprises three light guides 40 interconnected by a junction sheet 400.
- Each of the light guides 40 extends essentially along a longitudinal direction L.
- the light guides 40 are not necessarily straight.
- the light guides 40 have essentially cylindrical portions.
- the light guides 40 are arranged on the support 5 and in the housing 2 so as to be visible, at least over certain portions, through the projecting regions 31 of the crystal 3.
- the junction sheet 400 comprises four thin webs 401, 402, 403, 404 resting on the support 5:
- the first 401, second 402 and third 403 webs each respectively comprise a second pattern 41 in relief visible through the crystal 3.
- This second pattern 41 forms a strip comprising, for example, recessed areas 42 and projecting areas 43.
- the recessed areas 42 and protruding areas 43 are arranged periodically along the longitudinal direction of the strips.
- the bands of the first 51 and second 41 patterns are arranged longitudinally and parallel to the light guides 40, along the latter.
- the periodicity of the recessed 42, 52 and protruding 43, 53 regions of the first 51 and second 41 patterns is the same.
- a gap 6 is arranged between the respective bands of the first 51 and second 41 patterns.
- the recessed 42, 52 and projecting 43, 53 zones of the first 51 and second 41 patterns extending in length parallel to the length of the gap 6 (the length of the gap 6 corresponding in the example described here to a direction perpendicular to the longitudinal direction of the strips, itself parallel to the longitudinal direction L of the light guides 40).
- the junction ply 400 is not masked by a bumper 120.
- the support 5 includes a recess 54 defining a step between two planes and the junction ply 400 is housed in the recess 54 so as to that the first 51 and second 41 patterns have a visible outer surface substantially in the same plane.
- the optical block 1 includes a mask 7 housed in the space formed by the housing 2 and the glass 3.
- the mask 7 includes openings 70.
- Each of the openings 70 is essentially in coincidence with the regions projecting 31 from the crystal 3.
- the openings 70 thus each reveal respectively one of the light guides 40.
- the openings 70 also reveal shallow areas 410, 510 of the junction sheet 400 and of the support 5.
- the strips of the first 51 and second 41 patterns are located at these shallow zones 410, 510.
- the openings 70 define a projection angle a of the light emitted by each of the light guides 40 through the glass 3.
- the minimum distance 8, perpendicular to the longitudinal direction L of each of the light guides 40, between each light guide and the glass 3, is identical and the projection angle a is the same for each of the light guides 40.
- an opaque strip 32 is positioned near, on, or in the glass 3 so as to at least partially mask the interstice 6, in a direction of observation.
- the opaque strip 32 is aligned with a visible pattern 130 on a visible element 140 (e.g. radiator grille, bumper, bodywork, etc.) of the vehicle 100, this visible element 140 comprising the slots 110 through which the light guides 40 appear.
- a visible element 140 e.g. radiator grille, bumper, bodywork, etc.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2110244A FR3127548B1 (fr) | 2021-09-29 | 2021-09-29 | Bloc optique de véhicule à guide multiple de lumière |
| PCT/FR2022/051567 WO2023052693A1 (fr) | 2021-09-29 | 2022-08-08 | Bloc optique de véhicule à guide multiple de lumière |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4409197A1 true EP4409197A1 (fr) | 2024-08-07 |
| EP4409197B1 EP4409197B1 (fr) | 2026-01-14 |
Family
ID=78770768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22768443.8A Active EP4409197B1 (fr) | 2021-09-29 | 2022-08-08 | Bloc optique de véhicule à guide multiple de lumière |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4409197B1 (fr) |
| FR (1) | FR3127548B1 (fr) |
| WO (1) | WO2023052693A1 (fr) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2049010C3 (de) | 1970-10-06 | 1979-12-13 | Robert Bosch Gmbh, 7000 Stuttgart | Fliehkraftversteller für Brennkraftmaschinen, insbesondere zur Änderung des Einspritzzeitpunktes bei Dieselmotoren |
| IT1403168B1 (it) * | 2010-10-19 | 2013-10-04 | Automotive Lighting Rear Lamps Italia S P A | Fanale automobilistico |
| JP5995699B2 (ja) * | 2012-12-07 | 2016-09-21 | 株式会社小糸製作所 | 車両用灯具 |
| AT520400B1 (de) * | 2017-08-29 | 2020-10-15 | Zkw Group Gmbh | Beleuchtungs- und/oder signalisierungsvorrichtung für ein kraftfahrzeug |
| IT201800002897A1 (it) * | 2018-02-21 | 2019-08-21 | Automotive Lighting Italia Spa | Dispositivo di illuminazione e/o segnalazione automobilistico con porzioni illuminanti segmentate |
| JP7309341B2 (ja) * | 2018-10-24 | 2023-07-18 | スタンレー電気株式会社 | 車両用灯具 |
| EP3663641B1 (fr) * | 2018-12-07 | 2025-07-02 | Marelli Automotive Lighting Italy S.p.A. | Dispositif d'éclairage du véhicule et/ou dispositif de signalisation du véhicule |
-
2021
- 2021-09-29 FR FR2110244A patent/FR3127548B1/fr active Active
-
2022
- 2022-08-08 EP EP22768443.8A patent/EP4409197B1/fr active Active
- 2022-08-08 WO PCT/FR2022/051567 patent/WO2023052693A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3127548B1 (fr) | 2025-12-26 |
| FR3127548A1 (fr) | 2023-03-31 |
| WO2023052693A1 (fr) | 2023-04-06 |
| EP4409197B1 (fr) | 2026-01-14 |
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