FR3124246A1 - PHOTON OUTPUT FRONT FACE LIGHT GUIDE ILLUMINATOR - Google Patents
PHOTON OUTPUT FRONT FACE LIGHT GUIDE ILLUMINATOR Download PDFInfo
- Publication number
- FR3124246A1 FR3124246A1 FR2106598A FR2106598A FR3124246A1 FR 3124246 A1 FR3124246 A1 FR 3124246A1 FR 2106598 A FR2106598 A FR 2106598A FR 2106598 A FR2106598 A FR 2106598A FR 3124246 A1 FR3124246 A1 FR 3124246A1
- Authority
- FR
- France
- Prior art keywords
- lighting device
- sub
- chosen
- photons
- light guide
- 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.)
- Withdrawn
Links
- 230000003287 optical effect Effects 0.000 claims description 8
- 230000006870 function Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 230000009131 signaling function Effects 0.000 description 2
- 238000011960 computer-aided design Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
Classifications
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- 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]
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- 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
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- 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
- F21S43/241—Light guides characterised by the shape of the light guide of complex shape
-
- 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
Abstract
Un dispositif d’éclairage (DE) comprend une source (SO) générant des photons, et un guide de lumière (GL) recevant dans une première partie (P1) les photons générés afin de les guider vers une seconde partie (P2) comportant des faces avant (FV) et arrière (FR). La face avant (FV) comprend, suivant au moins une première direction choisie, une alternance de premières zones (Z1), comportant chacune une protubérance permettant à des photons incidents de sortir du guide de lumière (GL) pour participer à une fonction photométrique choisie, et de secondes zones (Z2), dépourvues de protubérance de manière à réfléchir des photons incidents vers la face arrière (FR). Figure à publier avec l’abrégé : Fig. 2A lighting device (DE) comprises a source (SO) generating photons, and a light guide (GL) receiving in a first part (P1) the photons generated in order to guide them towards a second part (P2) comprising front (FV) and rear (FR) faces. The front face (FV) comprises, along at least a first chosen direction, an alternation of first zones (Z1), each comprising a protrusion allowing incident photons to leave the light guide (GL) to participate in a chosen photometric function , and second zones (Z2), devoid of protuberance so as to reflect incident photons towards the rear face (FR). Figure to be published with abstract: Fig. 2
Description
Domaine technique de l’inventionTechnical field of the invention
L’invention concerne les dispositifs d’éclairage qui comprennent une source de photons et un guide de lumière devant participer à la réalisation d’une fonction photométrique.The invention relates to lighting devices which comprise a source of photons and a light guide which must participate in the production of a photometric function.
Etat de la techniqueState of the art
Dans ce qui suit, on entend par « fonction photométrique » aussi bien une fonction photométrique de signalisation, qu’une fonction photométrique d’éclairage ou qu’une fonction photométrique d’effet lumineux, éventuellement décoratif.In what follows, the term "photometric function" means both a signaling photometric function, a lighting photometric function or a light effect photometric function, possibly decorative.
Dans certains domaines, comme par exemple celui des véhicules, éventuellement de type automobile, on utilise des dispositifs d’éclairage comprenant une source générant des photons et un guide de lumière recevant dans une première partie les photons générés afin de les guider vers une seconde partie pour qu’ils participent à une fonction photométrique choisie. On notera que de tels dispositifs d’éclairage peuvent faire partie de blocs optiques (avant ou arrière) assurant au moins une fonction photométrique.In certain fields, such as for example that of vehicles, possibly of the automotive type, lighting devices are used comprising a source generating photons and a light guide receiving in a first part the photons generated in order to guide them towards a second part. so that they participate in a chosen photometric function. It will be noted that such lighting devices can be part of optical units (front or rear) providing at least one photometric function.
Dans le cas d’un véhicule, lorsque la fonction photométrique est une fonction de signalisation, il peut s’agir, par exemple, d’une fonction de feu de jour (ou DRL (« Daytime Running Light (ou Lamp) » - signalisation lumineuse allumée automatiquement lorsque le véhicule est mis en fonctionnement pendant le jour)), ou d’une fonction d’indicateur de changement de direction (ou clignotant).In the case of a vehicle, when the photometric function is a signaling function, it may be, for example, a daytime running light function (or DRL ("Daytime Running Light (or Lamp)" - signaling light that comes on automatically when the vehicle is put into operation during the day)), or a direction change indicator (or flashing) function.
Actuellement, les guides de lumière des dispositifs d’éclairage présentés ci-avant sont soit de type cylindrique avec une sortie des photons perpendiculairement à leur direction principale, soit de type plat avec une sortie des photons par une face d’extrémité définie dans leur épaisseur, après que ces photons aient été réfléchis totalement entre des faces avant et arrière. Ces deux possibilités n’offrent pas une grande diversité de signatures lumineuses et/ou d’effets de style et/ou de formes de faisceau lumineux perçu. Par exemple, dans le cas d’un guide de lumière de type plat il n’existe pas de solution connue permettant aux photons de sortir par la face avant, qui a la plus grande surface, en de nombreux endroits.Currently, the light guides of the lighting devices presented above are either of the cylindrical type with an exit of the photons perpendicular to their main direction, or of the flat type with an exit of the photons by an end face defined in their thickness. , after these photons have been totally reflected between front and back faces. These two possibilities do not offer a great diversity of light signatures and/or style effects and/or perceived light beam shapes. For example, in the case of a flat-type light guide, there is no known solution allowing photons to exit through the front face, which has the largest surface, in many places.
L’invention a donc notamment pour but d’améliorer la situation.The aim of the invention is therefore in particular to improve the situation.
Présentation de l’inventionPresentation of the invention
Elle propose notamment à cet effet un dispositif d’éclairage comprenant une source générant des photons, et un guide de lumière recevant dans une première partie les photons générés afin de les guider vers une seconde partie comportant des faces avant et arrière.It proposes in particular for this purpose a lighting device comprising a source generating photons, and a light guide receiving in a first part the photons generated in order to guide them towards a second part comprising front and rear faces.
Ce dispositif d’éclairage se caractérise par le fait que la face avant de la seconde partie du guide de lumière comprend, suivant au moins une première direction choisie, une alternance de premières zones, comportant chacune une protubérance permettant à des photons incidents de sortir du guide de lumière pour participer à une fonction photométrique choisie, et de secondes zones, dépourvues de protubérance de manière à réfléchir des photons incidents vers la face arrière.This lighting device is characterized in that the front face of the second part of the light guide comprises, along at least a first chosen direction, an alternation of first zones, each comprising a protuberance allowing incident photons to exit from the light guide to participate in a chosen photometric function, and second zones, devoid of protuberance so as to reflect incident photons towards the rear face.
On dispose ainsi d’une plus grande diversité de signatures lumineuses et/ou d’effets de style et/ou de formes de faisceau lumineux perçu, au niveau de la face avant qui est celle qui a la plus grande surface.There is thus a greater diversity of light signatures and/or styling effects and/or forms of perceived light beam, at the level of the front face which is the one with the largest surface.
Le dispositif d’éclairage selon l’invention peut comporter d’autres caractéristiques qui peuvent être prises séparément ou en combinaison, et notamment :The lighting device according to the invention may comprise other characteristics which may be taken separately or in combination, and in particular:
- chaque protubérance peut être agencée sous la forme d’un prisme ;- each protuberance can be arranged in the form of a prism;
- la face avant de la seconde partie du guide de lumière peut comprendre, suivant une seconde direction choisie différente de la première direction choisie, l’alternance de premières et secondes zones ;- the front face of the second part of the light guide may comprise, in a second chosen direction different from the first chosen direction, the alternation of first and second zones;
- en présence de la dernière option, la seconde direction choisie peut être perpendiculaire à la première direction choisie ;- in the presence of the last option, the second direction chosen can be perpendicular to the first direction chosen;
- la première partie du guide de lumière peut comprendre une première sous-partie recevant les photons générés et une deuxième sous-partie prolongeant cette première sous-partie selon un premier angle choisi et propre à guider les photons issus de la première sous-partie vers une troisième sous-partie choisie de la seconde partie du guide de lumière ;- the first part of the light guide can comprise a first sub-part receiving the photons generated and a second sub-part extending this first sub-part according to a first angle chosen and capable of guiding the photons coming from the first sub-part towards a selected third subpart of the second part of the light guide;
- en présence de la dernière option, la deuxième sous-partie peut faire un second angle choisi avec la troisième sous-partie ;- in the presence of the last option, the second sub-part can make a second chosen angle with the third sub-part;
- en présence de la dernière sous-option, le second angle peut être compris entre 40° et 50° ;- in the presence of the last sub-option, the second angle can be between 40° and 50°;
- également en présence de la dernière sous-option, la troisième sous-partie peut être située à une extrémité de la seconde partie ;- also in the presence of the last sub-option, the third sub-part can be located at one end of the second part;
- la fonction photométrique choisie peut être une fonction de signalisation.- the chosen photometric function can be a signaling function.
L’invention propose également un bloc optique propre à équiper un véhicule et comprenant au moins un dispositif d’éclairage du type de celui présenté ci-avant.The invention also proposes an optical unit suitable for equipping a vehicle and comprising at least one lighting device of the type presented above.
Par exemple, ce bloc optique peut être un feu avant ou arrière ou un projecteur avant.For example, this optical block can be a front or rear light or a front projector.
L’invention propose également un véhicule, éventuellement de type automobile, et comprenant au moins un bloc optique du type de celui présenté ci-avant.The invention also proposes a vehicle, optionally of the automotive type, and comprising at least one optical unit of the type presented above.
Brève description des figuresBrief description of figures
D’autres caractéristiques et avantages de l’invention apparaîtront à l’examen de la description détaillée ci-après, et des dessins annexés (obtenus en CAO/DAO (« Conception Assistée par Ordinateur/Dessin Assisté par Ordinateur »)), sur lesquels :Other characteristics and advantages of the invention will become apparent on examination of the detailed description below, and of the appended drawings (obtained in CAD/DAO ("Computer-Aided Design/Computer-Aided Drawing")), on which :
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2106598A FR3124246A1 (en) | 2021-06-22 | 2021-06-22 | PHOTON OUTPUT FRONT FACE LIGHT GUIDE ILLUMINATOR |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2106598A FR3124246A1 (en) | 2021-06-22 | 2021-06-22 | PHOTON OUTPUT FRONT FACE LIGHT GUIDE ILLUMINATOR |
FR2106598 | 2021-06-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR3124246A1 true FR3124246A1 (en) | 2022-12-23 |
Family
ID=77021558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR2106598A Withdrawn FR3124246A1 (en) | 2021-06-22 | 2021-06-22 | PHOTON OUTPUT FRONT FACE LIGHT GUIDE ILLUMINATOR |
Country Status (1)
Country | Link |
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FR (1) | FR3124246A1 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1684002A2 (en) * | 2005-01-24 | 2006-07-26 | Schefenacker Vision Systems Germany GmbH | Lighting unit with light distributor |
JP2006236588A (en) * | 2005-02-22 | 2006-09-07 | Koito Mfg Co Ltd | Optical llumination device and vehicular lighting fixture |
DE69735732T2 (en) * | 1996-09-24 | 2006-09-21 | Seiko Epson Corp. | Lighting device and display device using the same |
DE102009012224A1 (en) * | 2009-03-07 | 2009-12-24 | Daimler Ag | Light-guiding device for use in e.g. headlamp of motor vehicle, has light decoupling elements including solid bodies provided with light discharging surfaces, where light beam runs from inner side of optical fiber to outer side of device |
DE102013104169A1 (en) * | 2013-04-25 | 2014-10-30 | Hella Kgaa Hueck & Co. | Lighting device for vehicles |
US20150138821A1 (en) * | 2012-08-02 | 2015-05-21 | Koito Manufacturing Co., Ltd. | Resin optical member and automotive lamp |
DE102018130056A1 (en) * | 2017-12-01 | 2019-06-06 | Varroc Lighting Systems, s.r.o. | A lighting device, in particular a signal light, for motor vehicles |
JP2020205147A (en) * | 2019-06-14 | 2020-12-24 | スタンレー電気株式会社 | Light guide body and vehicular lighting fixture |
-
2021
- 2021-06-22 FR FR2106598A patent/FR3124246A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69735732T2 (en) * | 1996-09-24 | 2006-09-21 | Seiko Epson Corp. | Lighting device and display device using the same |
EP1684002A2 (en) * | 2005-01-24 | 2006-07-26 | Schefenacker Vision Systems Germany GmbH | Lighting unit with light distributor |
JP2006236588A (en) * | 2005-02-22 | 2006-09-07 | Koito Mfg Co Ltd | Optical llumination device and vehicular lighting fixture |
DE102009012224A1 (en) * | 2009-03-07 | 2009-12-24 | Daimler Ag | Light-guiding device for use in e.g. headlamp of motor vehicle, has light decoupling elements including solid bodies provided with light discharging surfaces, where light beam runs from inner side of optical fiber to outer side of device |
US20150138821A1 (en) * | 2012-08-02 | 2015-05-21 | Koito Manufacturing Co., Ltd. | Resin optical member and automotive lamp |
DE102013104169A1 (en) * | 2013-04-25 | 2014-10-30 | Hella Kgaa Hueck & Co. | Lighting device for vehicles |
DE102018130056A1 (en) * | 2017-12-01 | 2019-06-06 | Varroc Lighting Systems, s.r.o. | A lighting device, in particular a signal light, for motor vehicles |
JP2020205147A (en) * | 2019-06-14 | 2020-12-24 | スタンレー電気株式会社 | Light guide body and vehicular lighting fixture |
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Legal Events
Date | Code | Title | Description |
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PLFP | Fee payment |
Year of fee payment: 2 |
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PLSC | Publication of the preliminary search report |
Effective date: 20221223 |
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ST | Notification of lapse |
Effective date: 20240205 |