EP3594563A1 - Beleuchtungsvorrichtung mit linse, die durch ein empfangslicht beleuchtet wird - Google Patents

Beleuchtungsvorrichtung mit linse, die durch ein empfangslicht beleuchtet wird Download PDF

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Publication number
EP3594563A1
EP3594563A1 EP19179336.3A EP19179336A EP3594563A1 EP 3594563 A1 EP3594563 A1 EP 3594563A1 EP 19179336 A EP19179336 A EP 19179336A EP 3594563 A1 EP3594563 A1 EP 3594563A1
Authority
EP
European Patent Office
Prior art keywords
lens
photons
light
color
source
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
Application number
EP19179336.3A
Other languages
English (en)
French (fr)
Other versions
EP3594563B1 (de
Inventor
Rodolphe Peron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
PSA Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3594563A1 publication Critical patent/EP3594563A1/de
Application granted granted Critical
Publication of EP3594563B1 publication Critical patent/EP3594563B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/26—Elongated lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/125—Coloured light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/18—Combination of light sources of different types or shapes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • 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
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • 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
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/10—Combination of light sources of different colours
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F21Y2115/15—Organic light-emitting diodes [OLED]

Definitions

  • the invention relates to lighting devices, and more precisely those which comprise at least one photon source and one lens participating in the performance of a photometric function.
  • photometric function means both a photometric lighting function, a photometric signaling function or a photometric light effect function, possibly decorative.
  • lighting devices comprising a source generating photons and a lens of elongated shape and acting on these photons so that they are directed towards a front part. and participate in a chosen photometric function. It will be noted that such lighting devices can be part of an optical unit possibly providing at least one other photometric function.
  • the photometric function of the lighting device can, for example, be chosen from a high beam function, a low beam (or code) function, and a fog light function. But it could also be a photometric signaling function.
  • this reception light function may consist of operation of the indicators or the stop or position lights (or pilot light) for a few seconds.
  • the reception light function does not use the main beam or dipped beam, in particular because it is prohibited to use them in town and their consumption of electricity is relatively high and therefore could discharge a very weakly charged battery.
  • the reception light function must therefore be performed by a source other than that of the high beam or low beam function. It is reminded that currently it is prohibited by the regulations to have a source of reception of color only. It is indeed necessary that when carrying out the photometric measurements the color of the reception light drowns in the function of high beam or low beam, that is to say that to the eye we see the color of the reception light but that the optical measurement of this reception light cannot be measured by the measuring device.
  • the invention therefore aims in particular to improve the situation.
  • a lighting device comprising a first source generating first photons defining light of a first color, and a lens of elongated shape and acting on the first photons generated so that they are directed towards a part before and participate in a chosen photometric function.
  • the lighting of the lens by at least one of its ends, without using or disturbing the photometric function, advantageously makes it possible to highlight the part of the lighting device which participates in the style and / or in the signature, and therefore can allow at the same time to highlight the system which is equipped with this lighting device.
  • the invention also provides a vehicle optical unit, possibly of the automobile type, and comprising at least one lighting device of the type presented above.
  • the invention also provides a vehicle, possibly of the automotive type, and comprising at least one lighting device of the type presented above and / or at least one optical unit of the type presented above.
  • the object of the invention is in particular to propose a lighting device DE comprising a first source of photons S1 and a lens L participating together in a chosen photometric function, and at least a second source of photons S2 supplying at least one light guide Gj responsible for lighting this lens L.
  • the DE lighting device is intended to equip an optical unit BO of a motor vehicle, such as a car.
  • a lighting device DE can be an equipment in itself (possibly comprising its own housing and its own protective glass), or can be part of other equipment than an optical unit of the vehicle.
  • a DE lighting device can be part of any vehicle (land, sea (or river), or air), of any installation, including of industrial type, of any device ( or system), including of the general public type, and of any building.
  • the optical unit BO (comprising at least one lighting device DE) is a headlight (or headlight) providing at least one photometric function of lighting.
  • the lighting device DE is a light device capable of ensuring at least one photometric function of lighting or signaling or of light effect, possibly decorative, since this photometric function requires at least a photon source and a lens.
  • the direction X is a direction called longitudinal because it is intended to be parallel to a longitudinal side of a vehicle
  • direction Y is a direction called transverse because it is intended to be perpendicular to the longitudinal sides of this vehicle and therefore perpendicular to the longitudinal direction X
  • the direction Z is a vertical direction, perpendicular to the longitudinal X and transverse Y directions.
  • an optical unit BO of the vehicle here a front headlight
  • a housing BB and a protective glass GP delimiting together a cavity housing a lighting device DE according to the invention.
  • the BB unit is intended, here, to be secured to a part of the body of a vehicle (here in a front part, such as for example a front wing). It is made of a rigid material, such as for example a plastic or synthetic material. In this case, it can be produced by molding.
  • the GP protective glass can, for example, be made of glass or plastic. It (GP) is fixedly secured to a front part of the housing BB, for example by gluing, welding or screwing. Furthermore, it (GP) may possibly have one or more colors chosen from crystal white, red and orange.
  • a lighting device DE comprises a first source S1, a lens L, and at least a second source S2j associated with a light guide Gj.
  • the first source S1 is arranged so as to generate first photons which define light of a first color (for example white).
  • This first photon source S1 may, for example, comprise at least one light-emitting diode, of the conventional type (or LED (“Light-Emitting Diode”)) or of the organic type (or OLED (“Organic Light-Emitting Diode”)) , or a laser diode.
  • it (S1) comprises four groups of at least one light-emitting diode.
  • each group can include several (at least two) light emitting diodes.
  • control means which can, for example, be part of at least one printed circuit board (not visible on the figure 2 ), possibly PCB (“Printed Circuit Board”) type. Note that the first photon source S1 can possibly also be installed on this printed circuit board.
  • Its main dimension (between its opposite ends E1j) extends in the transverse direction Y.
  • This lens L is arranged so as to act on the first photons generated by the first source S1 so that they go towards a front part and participate in a chosen photometric function.
  • This front part is located in front of the front face FV of the lens L, that is to say the face which is here placed facing the lens GP and through which the first photons emerge on which the lens L acts. In the example illustrated without limitation on the figure 1 , this front part is the GP glass.
  • this lens L can, for example, be produced by molding (possibly by multilayer injection) of a transparent plastic material such as poly (methyl methacrylate) (or PMMA) or polycarbonate (or PC).
  • a transparent plastic material such as poly (methyl methacrylate) (or PMMA) or polycarbonate (or PC).
  • the lighting device DE comprises at least a second source S2j arranged so as to generate second photons which define light of a second color, preferably different from the first color.
  • this second color may be purple. It can, here, be characteristic of the vehicle model or the make of the vehicle, or even be substantially identical to the (one) color of the vehicle body, for example.
  • the (each) second photon source S2j can, for example, comprise at least one light-emitting diode, of conventional type (or LED) or of organic type (or OLED), or else a laser diode.
  • the second source (s) of photons S2j can, for example, be installed on a PS support plate, as illustrated without limitation on the figure 2 .
  • This support plate PS can, for example, be a printed circuit board, possibly of the PCB type.
  • control means which can, for example, form part at least in part of at least one printed circuit board (not visible on the figure 2 ), possibly the same as that which controls the first photon source S1.
  • the (each) second source S2j is associated with a light guide Gj which comprises first E21j and second E22j opposite ends, here in the longitudinal direction X.
  • the first end E21j is supplied with second photons generated by a second source S2j associated.
  • the second end E22j is placed in the vicinity of one of the two opposite ends E1j of the lens L to supply it with second photons which have been guided from the first end E21j of its light guide Gj. This supply is intended to induce in at least part of the lens L an internal light having the second color.
  • This internal lighting can constitute a reception light which is generated to accommodate a user, here of the vehicle, who has been recognized near his vehicle, for example because he is carrying communicating equipment authorized to communicate at short distance with this vehicle.
  • This equipment can, for example, be an electronic card or vehicle access key comprising near-field communication means, or a smart mobile phone (or “smartphone”) comprising an application to control access to the vehicle.
  • a vehicle computer triggers the operation of each second source of photons S2 for a short period (typically a few seconds), to accommodate the user by means of a welcome light at the lens L of each lighting device DE.
  • the lighting device DE comprises not one but two second sources S2j associated respectively with two light guides Gj.
  • the lighting device DE may comprise only a single second source S2j associated with a single light guide Gj.
  • each light guide Gj may include a beveled face in order to favor the internal reflection of the second photons in the direction of the end E1j of the lens L which is located nearby.
  • each second end face E22j can be bevelled at around 45 °. This option advantageously makes it possible to place each light guide Gj along one of the two lateral sides (j) of the lighting device DE, which promotes the compactness of the latter (DE) in the transverse direction Y.
  • each bevelled face may include a coating or treatment on the outside.
  • the lens L comprises two opposite external faces Fk and extending between its opposite ends E1j
  • at least one of these external faces Fk can comprise three-dimensional structures diffusing some of the second photons outwards in order to induce a halo light effect.
  • these three-dimensional structures can be grains defined by a sandblasting operation.
  • the lighting device DE can also comprise two side covers CLj each masking one of the opposite ends E1j of the lens L and at least one front part of the light guide Gj which comprises the second end E22j of the latter (Gj ), which feeds this end E1j of the lens L.
  • the first side cover CL1 masks the first end E11 of the lens L and at least one front part of the first light guide G1 (and in particular its second end E221), while the second side cover CL2 masks the second end E12 of the lens L.
  • the side covers CLj could completely hide the light guides Gj, and not only their front part.
  • These side covers CLj can possibly constitute stylized hubcaps.
  • these side covers CLj can be produced by molding a rigid plastic or synthetic material, such as polyethylene (or PE) or polypropylene (or PP) or else polycarbonate (or PC), possibly treated (for example by metallization).
  • a rigid plastic or synthetic material such as polyethylene (or PE) or polypropylene (or PP) or else polycarbonate (or PC), possibly treated (for example by metallization).
  • the lighting device DE can also include a cover CS masking one of the two external faces Fk of the lens L (here the upper F1), the elements which participate in the photometric function and which are located upstream of the lens L, and a rear part of each light guide Gj comprising the first end E21j of the latter ( gj).
  • the cover CS comprises a central part extended on its two sides (j) by lateral wings masking the rear parts of the light guides Gj. This not only makes it possible to mask the elements which participate in the photometric function (apart from the front face FV of the lens L), but also the rear parts of the light guides Gj when they are not already masked by the side covers CLj.
  • the side wings of the cover CS could mask all of the light guides Gj, in the absence of the side covers CLj.
  • this cover CS can be produced by molding a rigid plastic or synthetic material, such as polyethylene (or PE) or polypropylene (or PP) or else polycarbonate (or PC).
  • a rigid plastic or synthetic material such as polyethylene (or PE) or polypropylene (or PP) or else polycarbonate (or PC).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Endoscopes (AREA)
EP19179336.3A 2018-07-10 2019-06-11 Beleuchtungsvorrichtung mit linse, die durch ein empfangslicht beleuchtet wird Active EP3594563B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1856315A FR3083844B1 (fr) 2018-07-10 2018-07-10 Dispositif d’eclairage a lentille eclairee par une lumiere d’accueil

Publications (2)

Publication Number Publication Date
EP3594563A1 true EP3594563A1 (de) 2020-01-15
EP3594563B1 EP3594563B1 (de) 2022-05-18

Family

ID=63442681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19179336.3A Active EP3594563B1 (de) 2018-07-10 2019-06-11 Beleuchtungsvorrichtung mit linse, die durch ein empfangslicht beleuchtet wird

Country Status (3)

Country Link
EP (1) EP3594563B1 (de)
CN (1) CN110701569B (de)
FR (1) FR3083844B1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2819040A1 (fr) * 2001-01-02 2002-07-05 Valeo Vision Composant d'optique ou de style pour dispositif d'eclairage ou de signalisation pour vehicule automobile
EP2568320A2 (de) * 2011-09-07 2013-03-13 Koito Manufacturing Co., Ltd. Fahrzeugleuchte
DE102015213552A1 (de) * 2015-07-17 2017-01-19 Automotive Lighting Reutlingen Gmbh Lichtmodul für einen Kraftfahrzeugscheinwerfer mit einer Laserlichtquelle
US20170158111A1 (en) * 2015-12-07 2017-06-08 GM Global Technology Operations LLC Exterior lighting and object detection assembly
US20170227182A1 (en) * 2014-09-30 2017-08-10 Hitachi Maxell, Ltd. Vehicular lighting apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6131571B2 (ja) * 2012-11-13 2017-05-24 市光工業株式会社 車両用灯具
JP6478204B2 (ja) * 2014-02-03 2019-03-06 パナソニックＩｐマネジメント株式会社 照明装置および照明装置を有する自動車
JP6636244B2 (ja) * 2014-12-04 2020-01-29 株式会社小糸製作所 路面描画用灯具ユニット

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2819040A1 (fr) * 2001-01-02 2002-07-05 Valeo Vision Composant d'optique ou de style pour dispositif d'eclairage ou de signalisation pour vehicule automobile
EP2568320A2 (de) * 2011-09-07 2013-03-13 Koito Manufacturing Co., Ltd. Fahrzeugleuchte
US20170227182A1 (en) * 2014-09-30 2017-08-10 Hitachi Maxell, Ltd. Vehicular lighting apparatus
DE102015213552A1 (de) * 2015-07-17 2017-01-19 Automotive Lighting Reutlingen Gmbh Lichtmodul für einen Kraftfahrzeugscheinwerfer mit einer Laserlichtquelle
US20170158111A1 (en) * 2015-12-07 2017-06-08 GM Global Technology Operations LLC Exterior lighting and object detection assembly

Also Published As

Publication number Publication date
FR3083844B1 (fr) 2021-06-04
EP3594563B1 (de) 2022-05-18
CN110701569A (zh) 2020-01-17
CN110701569B (zh) 2023-03-10
FR3083844A1 (fr) 2020-01-17

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