EP3898331A1 - Dispositif d'éclairage de l'habitacle d'un véhicule automobile apte à projeter un faisceau lumineux pixelisé - Google Patents
Dispositif d'éclairage de l'habitacle d'un véhicule automobile apte à projeter un faisceau lumineux pixeliséInfo
- Publication number
- EP3898331A1 EP3898331A1 EP19808614.2A EP19808614A EP3898331A1 EP 3898331 A1 EP3898331 A1 EP 3898331A1 EP 19808614 A EP19808614 A EP 19808614A EP 3898331 A1 EP3898331 A1 EP 3898331A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- optical element
- primary
- members
- support
- light sources
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 126
- 230000000295 complement effect Effects 0.000 claims abstract description 24
- 230000004913 activation Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
- B60Q3/74—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for overall compartment lighting; for overall compartment lighting in combination with specific lighting, e.g. room lamps with reading lamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
- B60Q3/64—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/80—Circuits; Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/70—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose
- B60Q3/76—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by the purpose for spotlighting, e.g. reading lamps
Definitions
- Lighting device for the passenger compartment of a motor vehicle capable of projecting a beam
- the present invention relates to a lighting device for the passenger compartment of a motor vehicle capable of projecting a pixelated light beam into the passenger compartment.
- the interior of a vehicle is provided with a plurality of lighting devices, such as an overhead light and reading lights.
- lighting devices such as an overhead light and reading lights.
- many systems as desired types of lighting are required and the functionality of these lighting systems is limited. Manufacturers were thus brought to combine several interior lighting functions into a matrix lighting function.
- the invention is part of this context and aims to improve the relative positioning of the various elements that make up a lighting device for the passenger compartment of a motor vehicle producing a pixelated light beam without increasing the cost.
- the subject of the invention is therefore a device for lighting the passenger compartment of a motor vehicle, comprising a first optical module comprising a plurality of light sources which can be activated selectively and mounted on a support, an optical element for collecting the rays emitted by light sources, the optical element comprising primary positioning members and the support comprising primary complementary positioning members, the optical element being mounted on the support so that each primary positioning member cooperates with the one of the primary complementary positioning members.
- the lighting device is configured to light the passenger compartment in a reading-type application and arranged for this purpose, for example, in the central front ceiling lamp of the vehicle.
- the selective activation makes it possible to generate elementary beams which can vary over time, by their periodicity, their intensities and / or their colors so as to form, in at least one zone of the passenger compartment, at least one image.
- pixelated net static and / or dynamic such as, for example, a mood image, a logo or even a pictogram.
- each light source comprises a semiconductor chip emitting light, in particular a light-emitting diode.
- the support for the light sources is a printed circuit board.
- the optical element is a primary optical element configured to form an elementary beam from the rays emitted by each of the light sources.
- the primary optical element may be a single piece comprising a rear collection part, comprising for example primary collection members arranged respectively in front of one of the light sources for collecting the rays emitted by the corresponding source and a front exit part, which forms for example a corrective lens, the rear collection and front parts outlet being connected together at a surface, for example a plane, junction.
- the primary collection members formed in the rear part of the primary optical element can respectively take the form of a light guide or a lens or a collimator and can respectively have a square, rectangular or round section.
- each primary collection member can be coupled to a light source so that the major part of the light rays emitted by this light source enters the primary collection member which is dedicated to it by an entry face of this organ and are deflected to the junction plane from which the rays emerge shaped in a narrower light brush forming a square or rectangular or even round pixel, then are then deflected by the front exit part to form the elementary beam.
- the optical element comprises a mechanical part on which the primary positioning members are formed.
- the mechanical part may consist of a plate situated at the level of the junction plane connecting the rear collection part and the exit front part, and extending for example on either side of these rear parts and before.
- each primary positioning member has a rib extending from a rear face of the mechanical part towards the support and arranged to rest against a front face of the support. If necessary, the length of the rib may be greater than the length of the primary collection members. In this way, on the one hand, contact between the primary collection members and the light sources, which could be harmful, is avoided, and the primary collection members are positioned correctly with respect to the light sources, in a direction parallel to the optical axis of the primary optical element.
- each primary positioning member further comprises a pin extending from the rib towards the support, each member primary complementary positioning being formed by an orifice formed in the support and into which the pin is inserted. This ensures correct positioning of the primary collection members vis-à-vis the light sources, in directions perpendicular to the optical axis of the primary optical element.
- each primary positioning member could comprise only a pin extending from a rear face of the mechanical part towards the support.
- the first optical module may include a secondary optical element, configured to project each elementary beam formed by the primary optical element in the passenger compartment.
- a secondary optical element configured to project each elementary beam formed by the primary optical element in the passenger compartment.
- the secondary optical element can for example comprise an additional lens, for example biconvex or else a reflector or even a combination of one or more of these elements. It should be noted that in the case of a front exit portion of the primary optical element forming a corrective lens, the objective of this corrective lens is to correct optical aberrations introduced by the entire optical system formed by the optical elements primary and secondary.
- the secondary optical element comprises secondary positioning members and the primary optical element comprises secondary complementary positioning members, the secondary optical element being mounted on the primary optical element so that each member of secondary positioning cooperates with one of the secondary complementary positioning members.
- the secondary optical element comprises a mechanical part on which the secondary positioning members are formed, the secondary complementary positioning members being formed in the mechanical part of the primary optical element.
- the mechanical part of the primary optical element participates both in the positioning of the primary optical element with respect to the light sources and in the positioning of the secondary optical element with respect to the optical element primary.
- each secondary positioning member may comprise a rib extending from a rear face of the mechanical part of the secondary optical element towards the primary optical element and arranged to rest against a front face of the mechanical part of the primary optical element.
- each secondary positioning member may further comprise a pin extending from the rib towards the primary optical element, each secondary complementary positioning member being formed by an orifice formed in the mechanical part of the primary optical element and in which the pawn is inserted.
- each secondary positioning member could comprise only a pin extending from a rear face of the mechanical part of the secondary optical element towards the secondary optical element.
- at least one of the orifices of the mechanical part of the primary optical element can be an oblong orifice, which in particular makes it possible to ensure isostatic positioning of the secondary optical element.
- the device comprises a rear cover in which the support is housed and a front cover comprising a housing for receiving the secondary optical element.
- the front cover can be fixed, in particular by snapping; to the rear cover so as to hold the support, the primary optical element and the secondary optical element in position.
- the front cover thus blocks the stack formed by the support, the primary optical element and the secondary optical element on the rear cover.
- the housing may include a day to allow the elementary beams projected by the secondary optical element to pass.
- the rear cover may have an opening for receiving a connector supported by the support and intended to receive an electrical supply for electrically supplying the light sources.
- the secondary optical element comprises keying members and the housing of the front cover comprises complementary keying members intended to cooperate with the keying members of the secondary optical element when the secondary optical element is installed in housing.
- keying devices make it possible to guarantee that the secondary optical element will be mounted in the correct position during assembly of the device. It may for example be one or more grooves formed on the interior walls of the housing and one or more slots made in the mechanical part of the secondary optical element, the profile of the mechanical part thus being asymmetrical by rotation 180 °.
- the primary optical element may also include keying members intended with complementary keying members of the front cover.
- the lighting device can comprise a second optical module comprising a plurality of selectively activatable light sources and an optical element for collecting the rays emitted by the light sources, in which the light sources of the second optical module are mounted on the support of the first optical module, and in which the optical elements of the first and of the second optical module form a single piece.
- the primary optical elements of the first and second optical module can form a single primary part: and the secondary optical elements can also form a single secondary part. In this way, the respective positioning members of the primary and secondary optical elements can be shared, so as to facilitate assembly of the assembly and reduce the cost of the device.
- the first and second optical modules are arranged so that the elementary beams projected by the secondary optical elements are superimposed or interlaced.
- the first and second modules can be arranged so that all the elementary beams emitted by the same module together form a checkerboard, the checkers formed by the first and second modules being complementary. This guarantees that the overall beam emitted by the lighting device, that is to say the beam emitted when all the light sources of the first and second modules are activated, is homogeneous.
- the lighting device comprises an electronic circuit capable of receiving control instructions, and arranged to selectively activate one or more of the light sources as a function of said control instructions.
- the lighting device can be provided with a tactile interface, the tactile interface being arranged to detect interactions of a user with the interface and to emit according to the instructions for controlling the ignition of one or several pixels in the passenger compartment, for example to perform a reading function or even an ambient lighting function.
- the electronic circuit is arranged to select the light sources to be activated to perform said function and to activate these sources.
- Figure 1 partially shows a lighting device for the passenger compartment of a motor vehicle according to an embodiment of the invention
- Figure 2 shows a bottom view of the primary optical element of the lighting device of [Figure 1];
- FIG. 4 shows a top view of a rear cover housing the support of the lighting device of [Figure 1];
- FIG. 5 shows a bottom view of a front cover for the lighting device of [Figure 1]
- Figure 6 shows a view of the lighting device of [Figure 1] housed in the rear and front covers of [Figure 4] and [Figure 5].
- FIG. 1 shows a device for lighting the passenger compartment of a motor vehicle 1.
- This device 1 comprises two optical modules 10 and 20, each comprising a plurality of light-emitting diodes 1 1 and 21, which can be selectively activated by an electronic circuit (not shown) and mounted on a common printed circuit board 2.
- Each optical module 10 and 20 comprises a primary optical element comprising a rear collection part formed by the primary collection members 12 and 22 and a front outlet part formed by a corrective lens 13 and 23.
- the primary collection members each optical module consist of square section light guides 12 and 22, visible in particular in [ Figure 2], each respectively arranged opposite one of the light-emitting diodes 1 1 and 21 to collect the rays emitted by this diode.
- Each corrective lens 13 and 23 has an exit face in the form of a hemispherical dome.
- the rear collection part and the exit front part are interconnected at a junction plane.
- each light guide 12 and 22 is coupled to a light-emitting diode 1 1 and 21 so that most of the light rays emitted by this diode penetrate the light guide which is dedicated to it by an entry face of this guide and are guided to the junction plane, the rays being shaped at this junction plane in a narrower light brush forming a square or rectangular or even round pixel, then are then deflected by the corrective lens to form a elementary beam.
- the primary optical elements of modules 10 and 20 form a single single piece 3.
- the primary collection members 12 of module 10 are arranged in a checkerboard pattern and the primary collection members 22 of the module 20 are also arranged in a checkerboard pattern, in a distribution complementary to that of the checkerboard pattern of the module 10.
- the elementary beams formed by the module 10 can be interleaved with the elementary beams formed by the module 20, so that a elementary beam formed by the module 10 is placed between two elementary beams formed by the module 20.
- each module 10 and 20 further comprises a secondary optical element 14 and 24, in the form of a biconvex lens (also visible in [ Figure 3], configured to project each elementary beam formed by the element primary optics of the module in the passenger compartment.
- a secondary optical element 14 and 24 in the form of a biconvex lens (also visible in [ Figure 3], configured to project each elementary beam formed by the element primary optics of the module in the passenger compartment.
- the junction plane of the rear collection part 12 and 22 and of the front exit part 13 and 23 of the primary optics is coincident with a focal plane object of the element secondary projection optics 14 and 24.
- the secondary optical elements 14 and 24 form a single monobloc piece 5.
- the part 3 comprising the primary optical elements comprises a mechanical part 31 in the form of a plate 31 situated at the level of the junction plane connecting the primary collection members 12 and 22 to the corrective lenses 13 and 23.
- the part 3 further comprises two ribs 41 extending from a rear face of the plate 31 towards the support 2.
- Each rib 41 has a length greater than that of the light guides 12 and 22, so as to rest on a front face of the support 2 to avoid contact between the light-emitting diodes 1 1 and 21 and the light guides 12 and 22, and to position the input faces of the light guides 12 and 22 at a correct distance from the diodes 1 1 and 21 in a direction d longitudinal extension of these light guides 12 and 22.
- each rib 41 is provided with a pin 42, extending either on one side of the rib or in the center of the rib and towards the support 2.
- the support 2 further comprises orifices 4 3, into which these pins 42 are inserted, so as to position the input faces of the light guides 12 and 22 correctly opposite the light-emitting diodes 1 1 and 21 carried by the support 2.
- the rib assembly 41 and pin 42 thus forms primary positioning members 4 cooperating with complementary primary positioning members 43 to guarantee correct positioning of the input faces of the light guides 12 and 22 with respect to the light-emitting diodes 1 1 and 22, so as to that the coupling of these guides with these diodes is optimal and allows the formation of elementary light beam of controlled shape.
- the part 5 comprising the secondary optical elements also comprises a mechanical part 51 on which ribs 61 extending are formed towards the part 3 and provided with pins 62.
- the part 5 is stacked on the part 3, so that the ribs 61 rest on an upper face of the mechanical part 31.
- the mechanical part 31 of the part 3 is provided with orifices 63 in which the pins 62 are inserted.
- the rib 61 and pin 62 assembly thus forms secondary positioning members 6 cooperating with secondary complementary positioning members 63 to guarantee a superposition of the focal plane of the projection lenses 14 and 24 with the junction plane of the light guides 12 and 22 and of the corrective lenses 13 and 23, so that the elementary beams formed by these light guides are projected as sharply as possible.
- the rear cover 91 has openings 93 and the front cover 92 has clips 95 intended to engage by snap-fastening with the openings 93 in the rear cover 91 to assemble the two covers together.
- the rear cover 91 also has an opening 92 for receiving a connector (not shown) supported by the support 2 and intended to receive an electrical supply for electrically supplying the light-emitting diodes 1 1 and 21.
- the front cover 92 includes a housing 96, intended to receive the part 5 comprising the secondary optical elements 14 and 24.
- This housing is perforated to let out the elementary light beams projected by these secondary optical elements towards the passenger compartment.
- the part 5 comprising the secondary optical elements 14 and 24 comprises slots 71, produced at the level of the mechanical part 51, and the housing 96 comprises grooves 72 produced at the interior walls of the housing.
- the slots 71 are intended to receive the grooves 72 so as to guarantee that the secondary optical elements 14 and 24 will be mounted in the correct position when they are inserted into the housing 96.
- the mechanical part 31 of the part 3 comprising the primary optical elements also comprises a slot 81 intended to receive a groove 82 produced in the front cover 94 to guarantee that the optical elements primers will be positioned correctly when stacking part 5 on part 3.
- the lighting device 1 is thus configured to illuminate the passenger compartment in an reading lamp type application with a pixelated light beam, forming, by a plurality of elementary light beams, the selective activation of the light emitting diodes 1 1 and 21 allowing to generate elementary beams which can vary over time, by their periodicity, their intensities and / or their colors.
- the lighting device thus makes it possible to project a homogeneous pixelated light beam whose pixels are sharp, so that its use is comfortable for a passenger in the passenger compartment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1873082A FR3090077B1 (fr) | 2018-12-17 | 2018-12-17 | Dispositif d’éclairage de l’habitacle d’un véhicule automobile apte à projeter un faisceau lumineux pixélisé |
| PCT/EP2019/082876 WO2020126388A1 (fr) | 2018-12-17 | 2019-11-28 | Dispositif d'éclairage de l'habitacle d'un véhicule automobile apte à projeter un faisceau lumineux pixelisé |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3898331A1 true EP3898331A1 (fr) | 2021-10-27 |
Family
ID=66690512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19808614.2A Pending EP3898331A1 (fr) | 2018-12-17 | 2019-11-28 | Dispositif d'éclairage de l'habitacle d'un véhicule automobile apte à projeter un faisceau lumineux pixelisé |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11498479B2 (fr) |
| EP (1) | EP3898331A1 (fr) |
| CN (1) | CN113226850A (fr) |
| FR (1) | FR3090077B1 (fr) |
| WO (1) | WO2020126388A1 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2693106A2 (fr) * | 2012-08-03 | 2014-02-05 | Automotive Lighting Reutlingen GmbH | Module d'éclairage |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60223050T2 (de) * | 2001-08-31 | 2008-07-17 | Gentex Corp., Zeeland | Fahrzeuglampenanordnung mit kühlkörper |
| US7025485B2 (en) * | 2003-10-29 | 2006-04-11 | Guide Corporation | High mount stop lamp with printed circuit board |
| US7736019B2 (en) * | 2006-10-10 | 2010-06-15 | Yanchers Corporation | Lighting system |
| DE102012213843B3 (de) * | 2012-08-03 | 2013-09-19 | Automotive Lighting Reutlingen Gmbh | Primäroptikeinheit für ein Lichtmodul |
| DE102012022716A1 (de) * | 2012-11-21 | 2013-05-29 | Daimler Ag | Mischen und Einkoppeln von Licht in einen Lichtleiter mittels einer Umlenkvorrichtung und einem Mischerstab |
| US9964261B2 (en) * | 2013-03-15 | 2018-05-08 | I/O Controls Corporation | Integrated lighting fixture and message board |
| DE102013225949A1 (de) * | 2013-12-13 | 2015-06-18 | Automotive Lighting Reutlingen Gmbh | Kraftfahrzeugscheinwerfer |
| FR3048068B1 (fr) | 2016-02-24 | 2022-08-05 | Valeo Vision | Systeme d'eclairage pour habitacle de vehicules automobiles |
| FR3055400B1 (fr) | 2016-09-01 | 2019-06-28 | Valeo Vision | Module optique pour eclairer des points de portique |
| FR3056700B1 (fr) * | 2016-09-29 | 2021-04-30 | Valeo Vision | Module d'eclairage optique, notamment pour un vehicule automobile |
| DE102016124800A1 (de) * | 2016-12-19 | 2018-06-21 | Automotive Lighting Reutlingen Gmbh | Primäroptikbaugruppe zum Einsatz in einer Kraftfahrzeugbeleuchtungseinrichtung und Kraftfahrzeugbeleuchtungseinrichtung mit einer solchen Primäroptikbaugruppe |
| DE102017204527B4 (de) * | 2017-03-17 | 2022-06-09 | Osram Gmbh | Beleuchtungssystem und Scheinwerfer |
-
2018
- 2018-12-17 FR FR1873082A patent/FR3090077B1/fr active Active
-
2019
- 2019-11-28 WO PCT/EP2019/082876 patent/WO2020126388A1/fr not_active Ceased
- 2019-11-28 CN CN201980083709.3A patent/CN113226850A/zh active Pending
- 2019-11-28 US US17/312,863 patent/US11498479B2/en active Active
- 2019-11-28 EP EP19808614.2A patent/EP3898331A1/fr active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2693106A2 (fr) * | 2012-08-03 | 2014-02-05 | Automotive Lighting Reutlingen GmbH | Module d'éclairage |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020126388A1 (fr) | 2020-06-25 |
| CN113226850A (zh) | 2021-08-06 |
| US11498479B2 (en) | 2022-11-15 |
| US20220063492A1 (en) | 2022-03-03 |
| FR3090077B1 (fr) | 2021-05-07 |
| FR3090077A1 (fr) | 2020-06-19 |
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