WO2014053442A1 - Dispositif d'actionnement d'un élément optique d'un dispositif déclairage et/ou de signalisation - Google Patents
Dispositif d'actionnement d'un élément optique d'un dispositif déclairage et/ou de signalisation Download PDFInfo
- Publication number
- WO2014053442A1 WO2014053442A1 PCT/EP2013/070342 EP2013070342W WO2014053442A1 WO 2014053442 A1 WO2014053442 A1 WO 2014053442A1 EP 2013070342 W EP2013070342 W EP 2013070342W WO 2014053442 A1 WO2014053442 A1 WO 2014053442A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical element
- optical
- actuating
- sun
- rays
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 81
- 230000011664 signaling Effects 0.000 title claims abstract description 22
- 230000006866 deterioration Effects 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape 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
- 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]
-
- 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]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
-
- 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
- F21S41/19—Attachment of light sources or lamp holders
-
- 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
- F21S41/29—Attachment thereof
- F21S41/295—Attachment thereof specially adapted to projection 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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
-
- 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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
- F21S41/47—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
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/10—Protection of lighting devices
-
- 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
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
- F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
-
- 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]
Definitions
- the present invention relates to a device for actuating an optical element of an optical module installed in a lighting and / or signaling device of a motor vehicle.
- the invention also relates to an optical module comprising such an actuating device, and a lighting and / or signaling device of a motor vehicle. More particularly, the invention relates to a new generation motor vehicle headlight where the light source is constituted by a set of light emitting diodes (LEDs).
- LEDs light emitting diodes
- Directional lighting devices either of the DBL (Dynamic Bending Light) type, or of the automatic adjustment of the level of the headlamp beams according to the attitude of the vehicle, or of the LVL category (acronym for Levelling of Vehicle Light), implement projectors capable of generating a directional light beam.
- DBL Dynamic Bending Light
- LVL category acronym for Levelling of Vehicle Light
- Document EP1598593 describes such an elliptical LED projector for vehicles.
- the light source is placed in a first focus of the elliptical reflector, while a reflective plate, called “folding blade", intended to cut the light beam and to ensure a distribution light energy in the beam in accordance with the standards, is arranged at the second focus.
- the emerging beam of the mirror is collimated by an aspheric lens whose focal point corresponds to this second focus.
- a known solution to this problem is to defocus the light emitting modules, but it prohibits to achieve a maximum of luminous efficiency.
- Another solution is to interpose caches, but in this case the optical efficiency of the modules is dramatically reduced.
- the present invention aims more particularly to solve this problem for an LED projector of the type comprising at least one light emitting diode placed at a first focus of a first optical system for forming a light beam projected along a first optical path.
- the device for actuating at least one optical element of a lighting and / or signaling device of a motor vehicle comprises an actuating element arranged so as to displace the optical element under the effect of the heat of the sun's rays.
- FIRE ILLE DE REM PLACEM ENT (RULE 26) thus obtains a passive actuation device, that is to say not requiring any energy source embedded in the vehicle. This keeps the actuating device functional while the vehicle is immobilized stopped engine and cut contact and even while its battery is discharged or deposited.
- the optical element may comprise a reflector and / or a folding blade and / or a light source such as a light-emitting diode and / or collimating optics such as a lens.
- the actuating element comprises an expandable element which deforms under the effect of heat and which is thermally coupled with the optical element, in order to move the latter when it undergoes a heating due to the rays of the sun, to avoid its deterioration by the sun's rays.
- the expandable element comprises a bimetallic strip.
- a passive actuating element it is possible to achieve in a very simple way a passive actuating element.
- the actuating device may comprise a return element of the expandable element to a rest position.
- the actuating device may comprise a stop defining a rest position.
- the actuating device may comprise a signaling element of the position of the optical element.
- the optical element may be displaceable in translation, for example in vertical translation or in horizontal translation.
- the optical element can be rotated.
- an optical module of a lighting and / or signaling device of a motor vehicle comprises an actuating device defined above.
- the module may include a light source placed at a first focus of a reflector.
- the optical module may include an elliptical reflector, a folding blade at a second focus of the elliptical reflector, and a collimating optics, such as a lens, the third focus of which is at the second focus.
- a lighting and / or signaling device of a motor vehicle in particular a projector, comprises at least one optical module defined above.
- FIG. 1 is a diagram of an embodiment of a lighting and / or signaling device according to the invention, shown in a first configuration.
- Figure 2 is a diagram of the embodiment of the lighting and / or signaling device according to the invention, shown in a second configuration.
- FIG. 3 is a diagram of an embodiment of an actuating device according to the invention, shown in a first configuration.
- Figure 4 is a diagram of the embodiment of the actuating device according to the invention, shown in a second configuration.
- An embodiment of a lighting and / or signaling device 20 according to the invention is described below with reference to FIGS. 1 and 2.
- the device is for example an LED projector, in particular an LED projector of the category. LVL.
- the lighting and / or signaling device 20 comprises at least one optical module 1 and an enclosure comprising a housing 22 and an ice 21, the optical module 1 being placed in the enclosure.
- the optical module 1 mainly comprises a light source such as a light-emitting diode 3 (or a set of light emitting diodes), a reflector such as an elliptical mirror 2, a collimation optics 4 such as a lens, and a folding blade 5.
- a light source such as a light-emitting diode 3 (or a set of light emitting diodes)
- a reflector such as an elliptical mirror 2
- a collimation optics 4 such as a lens
- a folding blade 5 mainly comprises a light source such as a light-emitting diode 3 (or a set of light emitting diodes), a reflector such as an elliptical mirror 2, a collimation optics 4 such as a lens, and a folding blade 5.
- the light-emitting diode 3 (or a set of light-emitting diodes) is mounted on a support at a first focus of the elliptical mirror 4.
- the folding blade 5 is positioned at the second focus of the elliptical mirror.
- the focus of the collimating optics 4 is positioned at the second focus of the elliptical mirror.
- the optical module comprises a device 10 for actuating an optical element 5 of the optical module 1 of the lighting and / or signaling device 20 of the motor vehicle.
- the optical element is the folding blade referenced 5.
- the actuating device comprises an actuating element 14 arranged to move the optical element 5 of the optical module under the effect of the 6.
- it is the sun's rays that by their heat control and provide the energy necessary for the displacement of the optical element so that the latter does not undergo deterioration due to prolonged exposure to the radiation. solar.
- the actuating element comprises an expandable element 14 which deforms, advantageously only, under the effect of heat and in mechanical and thermal coupling with the optical element.
- the bending blade 5 is subjected to solar rays converging at the bending blade 5 as shown in FIG. 1, the bending blade 5 is heated, a portion of the radiation being absorbed.
- the folding blade 5 is initially in the position shown in Figures 1 and 3. Part of the thermal energy is transferred from the optical element to the expansion element 14 via the thermal coupling.
- the expandable element 14 is then deformed to reach an equilibrium position shown in FIGS.
- the expandable element 14 comprises a bimetallic strip.
- the bimetal is fixed, for example at a first end, to a frame 15 constituted for example by a portion of the housing 22 or another element of the optical module 1.
- the bimetal is also fixed, for example at a second end, to the optical element 5.
- the optical element 5 In the first position of the optical element 5 shown in FIG. 3, the optical element 5 is brought into contact with a first stop 16 by the action of an elastic return element, such as a spring, in particular a coil spring. 12, this elastic return element bearing on a second stop 11. In this first position or rest position, the various elements of the optical module are arranged for the lighting and / or signaling device to operate normally.
- the expandable element 14 is at rest.
- the optical element 5 In the second position of the optical element shown in FIG. 4, the optical element 5 is biased towards the first stop 16 by the action of the elastic return element, but maintained in its equilibrium position by the bimetallic action. This bimetal action is determined by the temperature of the latter and therefore by the thermal energy received by the optical element via the sun's rays.
- the different elements of the optical module are no longer arranged for the lighting and / or signaling device to operate normally.
- the actuating device 10 may comprise a signaling element for the position of the optical element 5, for example a switch having a
- FIRE ILLE DE REM PLACEM ENT (RULE 26) first state when the optical element is in the first position and having a second state when the optical element is not in the first position.
- the switch can be made by a first contact on the first stop 16 intended to cooperate, that is to say to come into contact with a second contact provided on the optical element 5 when the optical element occupies the first position.
- This function can also or alternatively be used to control the activation of a cooling device of the mobile optical element, such as a fan, or possibly be used to inform the vehicle or the user of the vehicle
- the optical element is movable or displaceable in translation, in particular in horizontal translation.
- the optical element can be moved in vertical translation.
- the optical element can be moved in rotation.
- the actuating device preferably comprises guide means in motion of the movable optical element relative to the rest of the optical module.
- these guide means comprise a slide connection or a pivot connection.
- the displacement amplitude of the optical element can be limited to a few millimeters only.
- the mobile optical element is a folding blade.
- the movable optical element may comprise the reflector 2 and / or the light source 3 and / or the collimation optic 4 and / or a cover that absorbs the light rays, the latter possibly able to perform the function of breaking the code beam, for example.
- the mobile optical element may also further comprise the folding blade.
- FIREPLACE REPLACEM ENT (RULE 26)
- the invention has been described applied to an elliptical optical module.
- the invention can also be applied to an optical module of parabolic type.
- the optical element may comprise a light source and a parabolic mirror.
- the expandable element is a bimetallic strip.
- the expandable element may be different: it may in particular comprise a jack comprising a chamber filled with a substance that expands under the effect of the heat produced by the sun's rays, this substance possibly being a gas, a liquid or a wax.
Landscapes
- 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)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13767011.3A EP2904308A1 (fr) | 2012-10-01 | 2013-09-30 | Dispositif d'actionnement d'un élément optique d'un dispositif déclairage et/ou de signalisation |
US14/429,962 US20150241017A1 (en) | 2012-10-01 | 2013-09-30 | Device for actuating an optical element of an illuminating and/or signaling device |
CN201380051561.8A CN104813101A (zh) | 2012-10-01 | 2013-09-30 | 用于对照明和/或信号指示装置的光学元件进行致动的装置 |
JP2015533627A JP2015530720A (ja) | 2012-10-01 | 2013-09-30 | 照明および/または信号装置の光学素子を作動させるための装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1259246 | 2012-10-01 | ||
FR1259246A FR2996281A1 (fr) | 2012-10-01 | 2012-10-01 | Dispositif d'actionnement d'un element optique d'un dispositif d'eclairage et/ou de signalisation |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014053442A1 true WO2014053442A1 (fr) | 2014-04-10 |
Family
ID=47740996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/070342 WO2014053442A1 (fr) | 2012-10-01 | 2013-09-30 | Dispositif d'actionnement d'un élément optique d'un dispositif déclairage et/ou de signalisation |
Country Status (6)
Country | Link |
---|---|
US (1) | US20150241017A1 (fr) |
EP (1) | EP2904308A1 (fr) |
JP (1) | JP2015530720A (fr) |
CN (1) | CN104813101A (fr) |
FR (1) | FR2996281A1 (fr) |
WO (1) | WO2014053442A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3041069B1 (fr) * | 2015-09-10 | 2018-08-17 | Valeo Vision | Module lumineux pour l'eclairage et/ou la signalisation d'un vehicule automobile |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2564947A1 (fr) * | 1984-05-25 | 1985-11-29 | Cibie Projecteurs | Perfectionnements aux projecteurs automobiles emettant un faisceau coupe. |
FR2760069A1 (fr) | 1997-02-21 | 1998-08-28 | Valeo Vision | Systeme d'eclairage a projecteurs de faisceau proche de type code et de faisceau complementaire de virage |
FR2770185A1 (fr) | 1997-10-24 | 1999-04-30 | Valeo Vision | Projecteur comportant un correcteur d'orientation et correcteur d'orientation pour projecteur, notamment pour vehicule automobile |
EP1527949A1 (fr) | 2003-10-31 | 2005-05-04 | Valeo Vision | Dispositif d'éclairage pour véhicule automobile |
EP1598593A2 (fr) | 2004-05-18 | 2005-11-23 | Ichikoh Industries, Ltd. | Phare de véhicule |
EP1821032A1 (fr) * | 2006-01-27 | 2007-08-22 | Valeo Vision | Projecteur, notamment à LED, pour véhicule automobile |
JP2011124110A (ja) * | 2009-12-11 | 2011-06-23 | Koito Mfg Co Ltd | 車両用ヘッドランプ |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201518108U (zh) * | 2009-11-23 | 2010-06-30 | 虞选勇 | 一种光驱动器 |
FR2971212B1 (fr) * | 2011-02-03 | 2013-08-23 | Valeo Vision | Piece de dispositif d'eclairage et/ou de signalisation pour vehicule automobile |
DE102011000735B4 (de) * | 2011-02-15 | 2016-02-25 | Hella Kgaa Hueck & Co. | Wärmeausdehnungskompensator und Scheinwerfer |
FR2983279B1 (fr) * | 2011-11-24 | 2015-08-21 | Valeo Vision | Element opaque et mobile empechant une focalisation des rayons solaires dans un projecteur |
CN202484808U (zh) * | 2012-03-31 | 2012-10-10 | 埃罗西(天津)电子塑料制品有限公司 | 一种汽车车灯 |
-
2012
- 2012-10-01 FR FR1259246A patent/FR2996281A1/fr not_active Withdrawn
-
2013
- 2013-09-30 US US14/429,962 patent/US20150241017A1/en not_active Abandoned
- 2013-09-30 JP JP2015533627A patent/JP2015530720A/ja not_active Withdrawn
- 2013-09-30 CN CN201380051561.8A patent/CN104813101A/zh active Pending
- 2013-09-30 EP EP13767011.3A patent/EP2904308A1/fr not_active Withdrawn
- 2013-09-30 WO PCT/EP2013/070342 patent/WO2014053442A1/fr active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2564947A1 (fr) * | 1984-05-25 | 1985-11-29 | Cibie Projecteurs | Perfectionnements aux projecteurs automobiles emettant un faisceau coupe. |
FR2760069A1 (fr) | 1997-02-21 | 1998-08-28 | Valeo Vision | Systeme d'eclairage a projecteurs de faisceau proche de type code et de faisceau complementaire de virage |
FR2770185A1 (fr) | 1997-10-24 | 1999-04-30 | Valeo Vision | Projecteur comportant un correcteur d'orientation et correcteur d'orientation pour projecteur, notamment pour vehicule automobile |
EP1527949A1 (fr) | 2003-10-31 | 2005-05-04 | Valeo Vision | Dispositif d'éclairage pour véhicule automobile |
EP1598593A2 (fr) | 2004-05-18 | 2005-11-23 | Ichikoh Industries, Ltd. | Phare de véhicule |
EP1821032A1 (fr) * | 2006-01-27 | 2007-08-22 | Valeo Vision | Projecteur, notamment à LED, pour véhicule automobile |
JP2011124110A (ja) * | 2009-12-11 | 2011-06-23 | Koito Mfg Co Ltd | 車両用ヘッドランプ |
Also Published As
Publication number | Publication date |
---|---|
US20150241017A1 (en) | 2015-08-27 |
JP2015530720A (ja) | 2015-10-15 |
CN104813101A (zh) | 2015-07-29 |
EP2904308A1 (fr) | 2015-08-12 |
FR2996281A1 (fr) | 2014-04-04 |
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