EP4136384A1 - Glace destinée à obturer un boîtier optique pour véhicule automobile, comprenant une cloison et au moins un guide de lumière - Google Patents
Glace destinée à obturer un boîtier optique pour véhicule automobile, comprenant une cloison et au moins un guide de lumièreInfo
- Publication number
- EP4136384A1 EP4136384A1 EP21716490.4A EP21716490A EP4136384A1 EP 4136384 A1 EP4136384 A1 EP 4136384A1 EP 21716490 A EP21716490 A EP 21716490A EP 4136384 A1 EP4136384 A1 EP 4136384A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- partition
- light guide
- glass
- motor vehicle
- light
- 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
- 238000005192 partition Methods 0.000 claims description 54
- 230000003287 optical effect Effects 0.000 claims description 45
- 239000011521 glass Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 description 6
- 235000015243 ice cream Nutrition 0.000 description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 4
- 239000004926 polymethyl methacrylate Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- F21S43/10—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]
-
- 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
- F21S43/243—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
- 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
Definitions
- the present invention relates to the technical field of lighting and signaling of motor vehicles.
- each motor vehicle be equipped with light signaling devices, so as to be able to warn other road users of the position of the motor vehicle and of the intentions of its driver.
- An optical unit consists of an optical box, in which are present lighting devices such as high beam, tail light, reversing light, indicator light and position light.
- the optical box is closed by a transparent glass, in order to protect the lighting devices from bad weather while allowing them to be seen by other road users.
- the luminous devices are thus confined in optical boxes, closed by panes of planar or substantially planar shape.
- the optical units are thus of little varied, little distinctive shapes.
- the present invention aims to provide an original arrangement of an optical system through a glass, so as to allow the production of optical units of various and distinctive shapes.
- the invention provides a lens intended to close an optical housing for a motor vehicle, comprising a partition and at least one light guide.
- the invention is remarkable in that the partition is at least partially opaque and in that at least one light guide passes through said partition, so that a proximal end of the light guide is opposite. screw on an internal face of the septum and a distal end of the lumen guide is opposite an external face of the septum.
- the invention provides the passage of one or more light guides through a glass, so that the end of at least one light guide is visible on the outside of an optical unit closed by said glass.
- the visible face of the optical unit closed by the glass according to the invention has a three-dimensional shape that is much more distinctive than the flat or substantially flat shapes of current glasses.
- the invention therefore proposes an original arrangement of a light guide through a lens, so as to allow the production of optical units of varied and distinctive shapes.
- ice is meant a partition intended to close an opening of an optical housing, so as to prevent the introduction of humidity and dust through said opening.
- the outer face of the partition is concave in shape. This embodiment advantageously makes it possible to position the distal end of the light guide passing through the partition, inside an optical housing.
- the partition is opaque to daylight. This embodiment advantageously makes it possible to accentuate the aesthetics of the visible face of the optical unit, for example by allowing a color match between the external face of the partition and the body of a motor vehicle.
- At least one light guide is of longitudinal shape. According to a preferred embodiment, at least one light guide is of planar shape.
- the internal face of the partition is covered by a transparent support layer.
- the backing layer is preferably transparent to daylight.
- support layer is meant a layer giving the partition a stable or substantially stable mechanical strength during normal use as a lens for an optical unit.
- the support layer also covers a proximal end of at least one light guide passing through the septum.
- the distal end of at least one light guide has a shape favorable to the emission of a light beam through said end, at an angle of emission greater than 30 °, preferably for an emission angle greater than 40 ° or greater than 70 °.
- a favorable shape can be a beveled, convex and / or grained shape.
- the invention also relates to an optical unit comprising a window for a motor vehicle, closed by a window described above.
- the invention also relates to a method of manufacturing a lens intended to close an optical housing for a motor vehicle, implementing the following steps:
- the internal face of the partition is covered by a support layer as described above.
- FIG. 1 shows a schematic longitudinal section of a mirror according to the invention
- FIG. 2 shows a schematic longitudinal section of an optical unit comprising an optical box closed by a glass illustrated in Figure 1;
- FIG. 3 represents a first step in the manufacture of an ice cream according to the invention
- FIG. 4 shows a second step in the manufacture of an ice according to the invention
- FIG. 5 shows a third step in the manufacture of an ice cream according to the invention
- FIG. 6 represents a fourth step in the manufacture of an ice cream according to the invention.
- the invention provides an original arrangement of an optical system through a glass, so as to allow the production of optical units of various and distinctive shapes.
- Figure 1 illustrates a first non-limiting embodiment of a glass 2 according to the invention, intended to close an optical housing of an optical unit for a motor vehicle.
- the mirror comprises an opaque partition 4, preferably black in color.
- the partition is delimited by an internal face 6, intended to be facing the inside of an optical box, and an external face 8 opposite the internal face 6, intended to be in contact with the environment. outside the optical box.
- the external face 8 of the partition is of concave shape, preferably of elliptical shape.
- the internal face 6 is parallel or substantially parallel to the external face 8.
- the thickness of the partition 4, defined in a direction normal to the external face 8, is between 2 mm and 10 mm, preferably between 2 mm and 5 mm.
- the partition 4 is formed from a polymer-based material.
- partition 4 is made from polymethyl methacrylate, also known by the abbreviation PMMA.
- the ice 2 is crossed by two light guides 10 of planar shape.
- the light guides are arranged so as to be parallel or substantially parallel to each other.
- Each lumen guide 10 has a proximal end 12, facing the internal face 6 of the partition, and a distal end 14, facing the external face 8 of the partition.
- the proximal ends 12A, 12B of the light guides are intended to be illuminated by light devices present in an optical box, and the distal ends 14A, 14B to project the light beams emitted by said devices outside the optical box.
- the proximal and distal ends of a The same light guide can be moved a distance between 1 cm and 50 cm, preferably between 5 cm and 10 cm.
- the distal ends of the light guides are preferably adapted according to the light signal emitted by the light devices illuminating them.
- the light guide 10A is bevelled at its distal end 14A, in order to orient the light beam emitted in a desired direction.
- the distal end 14B of the light guide 10B is convex in shape and its surface is grained, in order to promote a greater diffusion angle of the emitted light beam.
- the light guides 10 are secured to the partition by known means, of the bonding, welding or other type.
- a weld 16 produced by ultrasound connects each light guide 10 to the partition 4.
- the welds 20 are made by vibration, ultrasound or light radiation (LASER).
- the glass 2 also comprises a support layer 18, covering the proximal ends 12 of the light guides as well as the internal face 6 of the partition 4.
- the support layer is transparent to daylight. and made from polymethyl methacrylate.
- the support layer can advantageously enhance the mechanical strength of the partition, so as to allow the shape of the ice to be preserved during normal use.
- the thickness of the support layer defined in a direction normal to the internal face 6 of the partition is between 2 mm and 10 mm, preferably between 2 mm and 5 mm.
- the support layer 18 is provided with teeth 20, at its periphery, intended to bear against the edges of an optical housing, as illustrated below.
- the support layer is held against the internal face 6 of the partition, so as to subsequently prevent the introduction of a liquid or a gas between the support layer 18 and the partition 4.
- ultrasonic welds 20 are made between the partition 4 and the support layer 18, at their periphery, so as to seal the space between the partition and the support layer.
- the welds 20 are made by vibration, ultrasound or light radiation (LASER).
- Figure 2 now illustrates a schematic section of an optical unit 22 for a motor vehicle, comprising an optical box 24 closed by a glass 2 described above.
- the optical box 24 comprises light devices 26 of the light-emitting diode type, arranged opposite the proximal ends 12 of the light guides, so as to allow the diffusion of light beams emitted by said devices, at the distal ends 14 light guides.
- the lens 2 is held to the optical box 24, in a hermetic manner, by means of welds 20 made between the teeth 20 and the optical box.
- the welds 20 are made by vibration, ultrasound or light radiation (LASER).
- the lens 2 according to the invention allows the positioning of the distal ends 14 of the light guides outside the optical housing 24.
- the light beams emitted by the distal ends of the light guides 10 do not are not likely to be deflected and / or absorbed by a transparent or partially transparent wall closing off the optical box.
- the invention allows better control of the angles of photometric visibility of the light signals emitted by the optical unit 22.
- the partial presence of the light guides outside the optical unit 24 gives an appearance in three dimensions of the visible face of the optical unit 22. It is thus possible to produce very diverse and varied shapes, so as to allow greater differentiation between the optical blocks, by playing for example on the positioning of the light guides between them and / or the protruding length of the light guides.
- the present invention also relates to a method of manufacturing an ice cream 2 described above.
- the manufacturing method according to the invention implements a first perforation step illustrated in Figure 3. During this step, passages 28 are formed through a partition 4 as described above.
- the passages are dimensioned so as to allow the insertion of light guides 10 of planar shape, during a second step illustrated in Figure 4.
- the light guides are secured to the partition by known means, such as glue or welds 16 made by ultrasound.
- the internal face 6 of the partition is covered by a support layer 18.
- the support layer is of complementary shape to the internal face 6, so as to facilitate their superposition .
- the partition 4 and the support layer 18 are secured in a sealed manner by known means, such as glue or welds 20 produced by ultrasound.
- the partition 4, the light guides 10 and the support layer 18 are made from a common material, polymethyl methacrylate, in order to facilitate and guarantee a good weld between them.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2003747A FR3109427A1 (fr) | 2020-04-15 | 2020-04-15 | Glace destinée à obturer un boîtier optique pour véhicule automobile, comprenant une cloison et au moins un guide de lumière |
PCT/FR2021/050401 WO2021209694A1 (fr) | 2020-04-15 | 2021-03-10 | Glace destinée à obturer un boîtier optique pour véhicule automobile, comprenant une cloison et au moins un guide de lumière |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4136384A1 true EP4136384A1 (fr) | 2023-02-22 |
Family
ID=72709418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21716490.4A Pending EP4136384A1 (fr) | 2020-04-15 | 2021-03-10 | Glace destinée à obturer un boîtier optique pour véhicule automobile, comprenant une cloison et au moins un guide de lumière |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4136384A1 (fr) |
CN (1) | CN115398145A (fr) |
FR (1) | FR3109427A1 (fr) |
WO (1) | WO2021209694A1 (fr) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2748981A1 (de) * | 1977-11-02 | 1979-05-03 | Reitter & Schefenacker Kg | Beleuchtungseinrichtung fuer fahrzeuge |
ITTV20110034A1 (it) * | 2011-03-04 | 2012-09-05 | Automotive Lighting Italia Spa | Fanale automobilistico |
DE102012022277A1 (de) * | 2012-11-14 | 2014-05-15 | Volkswagen Aktiengesellschaft | Beleuchtungsvorrichtung mit einer Lichtscheibe und Verfahren zur Herstellung einer Lichtscheibe für eine Beleuchtungsvorrichtung |
FR3002895B1 (fr) * | 2013-03-05 | 2016-12-23 | Peugeot Citroen Automobiles Sa | Dispositif d'indication de changement de direction d'un vehicule, a guide de lumiere et ecran opalin |
FR3014787B1 (fr) * | 2013-12-12 | 2016-01-01 | Peugeot Citroen Automobiles Sa | Dipositif de signalisation lumineuse |
FR3046579A1 (fr) * | 2016-01-11 | 2017-07-14 | Peugeot Citroen Automobiles Sa | Bloc optique comprenant un feu de signalisation dote d’un guide de lumiere plat saillant de sa glace exterieure |
FR3074259B1 (fr) * | 2017-11-30 | 2020-10-09 | Psa Automobiles Sa | Dispositif d’eclairage a guide(s) de lumiere a source(s) de photons invisible(s), pour un vehicule |
-
2020
- 2020-04-15 FR FR2003747A patent/FR3109427A1/fr not_active Withdrawn
-
2021
- 2021-03-10 WO PCT/FR2021/050401 patent/WO2021209694A1/fr unknown
- 2021-03-10 CN CN202180028652.4A patent/CN115398145A/zh active Pending
- 2021-03-10 EP EP21716490.4A patent/EP4136384A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021209694A1 (fr) | 2021-10-21 |
FR3109427A1 (fr) | 2021-10-22 |
CN115398145A (zh) | 2022-11-25 |
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