EP2711612A1 - Vorrichtung zur Beleuchtung und/oder Signalisierung für Fahrzeuge, die eine Linse und Lichtquellen umfasst - Google Patents
Vorrichtung zur Beleuchtung und/oder Signalisierung für Fahrzeuge, die eine Linse und Lichtquellen umfasst Download PDFInfo
- Publication number
- EP2711612A1 EP2711612A1 EP13185229.5A EP13185229A EP2711612A1 EP 2711612 A1 EP2711612 A1 EP 2711612A1 EP 13185229 A EP13185229 A EP 13185229A EP 2711612 A1 EP2711612 A1 EP 2711612A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lens
- module according
- sources
- light
- module
- 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
Links
- 230000011664 signaling Effects 0.000 title claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 description 8
- 230000006870 function Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 230000009131 signaling function Effects 0.000 description 1
Images
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
- F21S41/25—Projection lenses
- F21S41/26—Elongated lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
-
- 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
- F21S41/141—Light emitting diodes [LED]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
-
- 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
- F21S41/265—Composite lenses; Lenses with a patch-like 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
- 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
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
Definitions
- the invention relates to lighting and / or signaling devices for motor vehicles.
- Document is known FR-2,849,156 a headlamp capable of producing a road beam or daylight-type beam, using the same light source and the same lens.
- the source is formed by a filament lamp or a discharge lamp.
- the projector is provided with a filter mounted movably between a position in which it intercepts the light rays of the source and a position in which it leaves them free. We thus obtain two different beams by means of the same optical unit.
- An object of the invention is to produce two types of beams by means of a device without resorting to such a mechanism for the passage from one beam to another.
- the source ignition configuration for example, igniting a source, or the other, or both
- the beam produced by the module is determined.
- At least one of the light sources has a light emission axis, this axis passing through the lens.
- At least one of the light sources is arranged in such a way that the beam that it emits enters directly into the lens.
- At least one of the sources is located at a focal point of the lens.
- the lens has a line of foci on which the sources are located.
- the lens has a light exit face having an elliptical shaped section in at least one vertical plane.
- the ellipse by having one or more sources in the vicinity of one of the homes the ellipse, it promotes the output of light rays of the lens in horizontal planes.
- the lens has a light exit face having an elliptical shaped section in several vertical planes parallel to each other.
- the module is arranged to produce by means of the lens a beam capable of constituting part of a regulatory cut-off beam.
- the module is arranged to produce the beam capable of constituting part of a regulatory cut-off beam by means of one of the sources, the other source or sources being extinguished.
- the module is arranged to produce, by means of the lens, a beam capable of constituting a portion, in particular the whole, of a regulatory beam that does not have a cutoff, notably a beam of the daylighting type.
- the module is arranged to produce a single beam by all sources.
- it is arranged to produce by means of the lens two different lighting beams.
- one of the beams is able to constitute a part of a cut-off beam, for example a passing beam, a driving beam or a fog beam.
- one of the beams does not present a cut and forms for example a daylight-type beam or DRL (Daytime Running Light).
- DRL Daytime Running Light
- the module comprises means for choosing a power supply voltage of at least one of the sources between two non-zero values.
- this source It is thus possible to feed this source with a relatively high voltage when this source is used without the others being lit or is used with a reduced number of other sources. Conversely, when this source is used with all other sources or with a large number of sources, one can reduce its supply voltage to obtain a better distribution of light.
- the module comprises a cover capable of forming a cut in a beam produced by means of the lens.
- the lenses are two in number and each capable of producing a beam.
- They can be formed in one piece with each other or in the form of separate pieces.
- the sources, associated in own with the or each lens are at least three in number.
- a lighting device and / or vehicle signaling which comprises a first optical module according to the invention.
- the device further comprises at least a second module arranged to produce a beam completing a beam produced by means of the first module to form a cut-off beam.
- the device forms a lighting device, a signaling device or both at the same time.
- the orthogonal coordinate system X, Y, Z in which the direction Z is vertical and the directions X and Y horizontally, the direction X being parallel to the direction of operation of the vehicle, is used hereinafter.
- the device 2 comprises a base module which comprises a single lens 4 and light sources formed by LEDs 6, 8, 10, 12, 14, 16.
- the LEDs are here six in number but this number is not limiting. It could be two, three, four, five or even more than six.
- the lens has two median planes of symmetry parallel to the X and Y directions respectively and to the X and Z directions
- the lens has a vertical front face 20 which has an elliptical shape in the vertical sections taken in planes parallel to the X and Z directions, as shown in figure 1 . That 22 of the two foci of the ellipse that is closest to the face 20 is located on the face 18.
- the lens thus comprises a line of foci parallel to the Y direction and located in its median horizontal plane.
- This elliptical shape which is the same in all sections, is based on a curve that forms the section of the lens in its median horizontal plane.
- This section can be given various shapes depending on the beams to be produced by the device. This is a parabolic form. But it could also be an elliptical shape.
- the elliptical shape of the vertical section makes it possible to orient the light rays emerging from the lens in horizontal planes or to give them a slightly inclined direction relative to the horizontal direction.
- All the sources are aligned along a line coinciding with the line of the foci and inscribed in the face 18.
- Each of the sources is therefore located at the aforementioned focus of the corresponding vertical section of the face 20. All have their emitting face in surface contact with the face 18 so that the latter receives light from each of the LEDs.
- the source 10 is located on the optical axis 7.
- the two sources 6 and 8 are located in the left part of the lens while the other three sources 12, 14 and 16 are located in its right part. Other provisions of the sources are of course conceivable.
- the basic module comprises control means 17 of the ignition of the led 10 and the control means 19 of the ignition of the other leds, common to them. So you can choose to turn on only the led 10, the other leds remaining off, or turn on all leds at the same time.
- control means 17 are configured to allow the power supply voltage of the led 10 to be selected between two non-zero values different from each other.
- the device 2 further comprises at least one complementary module 40 illustrated in FIG. figure 1 .
- This module is completely separate from the basic module. It comprises means for producing a beam of illumination independent of the beam produced by the base module. These means comprise for example at least one lens 42 and at least one light source 44 such as a led.
- This module 40 has the function of producing a beam that completes the beam emitted by the base module to obtain the desired regulatory beam.
- the basic module is able to produce two beams 26, 28, shown respectively in FIGS. Figures 5 and 6 as they appear on a vertical plane screen perpendicular to the X direction, arranged in front of the device.
- the beam 26 is a flat or low type beam. It is observed that the device sends little or no light above the horizontal line representing the horizon and in particular no light in the part of this line which is close to the center of the marker. This beam is formed by lighting only the source 10, the other leds of the device being extinguished. The supply voltage of this source is then given its highest value.
- the device is arranged so that the beam 26 of the base module and that of the complementary module 40 complement each other to form a cut-off beam.
- This is for example a passing beam, a driving beam or a fog light.
- one or more complementary modules 40 complete the beam 26 in the upper right portion of the screen.
- one or more complementary modules 40 complete the beam 26 in upper left and right parts of the screen.
- the fog beam is produced analogously.
- the other beam 28 is in this case a beam that has no cut.
- This is a daylight type beam. It is produced by simultaneously lighting all the leds of the basic module. It is observed that the beam extends as well below the horizontal axis representing the horizon line as above it, unlike the beam 26. The supply voltage of the source 10 is then given. its lowest value among the two non-zero values mentioned above.
- This beam 28 is produced by means of the single basic module, without using the complementary module 40 which is off.
- the device according to the invention makes it possible to give the central LED 10 a yield of for example between 60 and 70%, which is relatively high. It also makes it possible for the basic module to have substantially the same appearance for the observer, whether to produce a cut-off beam or a daylight-type beam.
- a second embodiment of the device is illustrated in Figures 7 to 10 .
- the device comprises not one but two lenses 4 distinct from each other but formed in one piece with each other in the present example.
- the device also includes a group of LEDs associated with one of them. lenses 4 and another group of leds associated with the other lens 4. It thus includes two basic modules this time, each module comprising one of the lenses and one of the groups of LEDs.
- Each base module is also configured in the same way as the basic module of the device of the Figures 1 to 4 . It includes in particular the same number of LEDs as the module of the first embodiment, this is not nevertheless an obligation.
- These two basic modules, and in particular the two lenses, are arranged to produce alone respective beams 30 and 32 which may be different from each other and are illustrated in FIGS. Figures 8 and 9 .
- the difference between the beams can be obtained in particular by giving the two lenses focal lengths different from each other.
- these two beams are obtained by lighting only the central diode 10 in each basic module. These are two beams of flat or low type.
- the device again comprises one or more complementary modules 40 providing one or more beams forming, in combination with the beams 30 and 32, a cut-off beam such as a passing beam, a driving beam or a fog beam as it is the case in this case.
- This regulatory beam is thus formed in particular by the addition of the beams 30 and 32.
- the device is further arranged so that the two basic modules used in combination and without the one or more complementary modules 40 produce a beam 34 illustrated in FIG. figure 10 .
- This is an unbroken beam which is in this case a daylight type beam. This time, all the leds of each of the basic modules are lit, the LEDs 10 being powered with the lowest voltage of the two possible.
- the add-on module (s) are off.
- the entrance surface of the lens when it comes to producing a daylighting beam, the entrance surface of the lens will be given a sufficient surface, for example about 24 cm 2 , to obtain the regulatory photometry of this type of beam.
- the two lenses can be made in the form of separate pieces.
- the invention can be implemented to provide a signaling device such as a direction indicator.
- the device forms a signaling device and / or a device lighting, it may have one or more other lighting and / or signaling functions than those implemented with the invention, these functions being performed by one or more modules independent of the aforementioned modules.
- control means capable of controlling the ignition of a group of LEDs independently of the other group of LEDs or one of the other groups of LEDs. It is also possible to provide individual control means for each led.
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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)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1258970A FR2995973B1 (fr) | 2012-09-25 | 2012-09-25 | Dispositif d'eclairage et/ou de signalisation pour vehicule comprenant une lentille et des sources |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2711612A1 true EP2711612A1 (de) | 2014-03-26 |
EP2711612B1 EP2711612B1 (de) | 2023-04-26 |
Family
ID=47257942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13185229.5A Active EP2711612B1 (de) | 2012-09-25 | 2013-09-19 | Modul für eine Vorrichtung zur Beleuchtung und/oder Signalisierung für Fahrzeuge, die eine Linse und Lichtquellen umfasst |
Country Status (4)
Country | Link |
---|---|
US (1) | US9200760B2 (de) |
EP (1) | EP2711612B1 (de) |
JP (1) | JP6257980B2 (de) |
FR (1) | FR2995973B1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013114264B4 (de) * | 2013-12-18 | 2023-12-07 | HELLA GmbH & Co. KGaA | Scheinwerfer für Fahrzeuge |
CN106662314B (zh) | 2014-07-23 | 2020-09-01 | 株式会社小糸制作所 | 灯具单元及车辆用前照灯 |
JP6443722B2 (ja) | 2014-07-30 | 2018-12-26 | パナソニックIpマネジメント株式会社 | 照明装置及び照明装置を備える自動車 |
FR3048059B1 (fr) * | 2016-02-22 | 2022-08-05 | Valeo Vision | Dispositif de projection de faisceau lumineux muni d'une matrice de sources de lumiere, module d'eclairage et projecteur muni d'un tel dispositif |
US10317030B2 (en) * | 2017-10-24 | 2019-06-11 | Grote Industries, Llc | Dual high-beam and low-beam vehicle headlamp |
EP3505818B1 (de) * | 2017-11-16 | 2023-01-04 | Stanley Electric Co., Ltd. | Fahrzeuglampe und beleuchtungssteuerschaltung einer fahrzeuglampe |
FR3138497A1 (fr) * | 2022-07-28 | 2024-02-02 | Valeo Vision | Module lumineux pour dispositif d’éclairage d’un véhicule |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2849156A1 (fr) | 2002-12-20 | 2004-06-25 | Valeo Vision | Projecteur de vehicule automobile assurant au moins deux fonctions |
US20050041434A1 (en) * | 2003-08-20 | 2005-02-24 | Yasushi Yatsuda | Light Source and vehicle lamp |
DE202010001654U1 (de) * | 2010-02-01 | 2010-05-20 | Delvis Gmbh | Leuchtsystem für ein Kraftfahrzeug |
EP2280215A2 (de) * | 2009-07-31 | 2011-02-02 | Zizala Lichtsysteme GmbH | LED-Kraftfahrzeugscheinwerfer zur Erzeugung einer dynamischen Lichtverteilung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10110132A1 (de) * | 2001-02-21 | 2003-01-16 | German Gresser | Automobil-Scheinwerfer |
JP4391870B2 (ja) * | 2004-04-02 | 2009-12-24 | 株式会社小糸製作所 | 車両用照明灯具 |
JP4258465B2 (ja) * | 2004-12-01 | 2009-04-30 | 市光工業株式会社 | 車両用前照灯ユニット |
JP4514052B2 (ja) * | 2005-10-14 | 2010-07-28 | スタンレー電気株式会社 | 車両用灯具 |
JP2007213878A (ja) * | 2006-02-08 | 2007-08-23 | Koito Mfg Co Ltd | 車両用前照灯 |
JP4864562B2 (ja) * | 2006-06-26 | 2012-02-01 | 株式会社小糸製作所 | 二輪車用灯具システム |
JP5425184B2 (ja) * | 2008-04-25 | 2014-02-26 | コーニンクレッカ フィリップス エヌ ヴェ | ランプ組立体 |
DE102008025397A1 (de) * | 2008-05-28 | 2009-12-24 | Osram Gesellschaft mit beschränkter Haftung | Fahrzeugbeleuchtungsvorrichtung mit mindestens zwei Halbleiter-Leuchtelementen |
JP5532310B2 (ja) * | 2010-03-25 | 2014-06-25 | スタンレー電気株式会社 | 車両用灯具 |
JP5659835B2 (ja) * | 2011-02-08 | 2015-01-28 | スタンレー電気株式会社 | 車両用灯具 |
EP3056385B1 (de) * | 2011-09-01 | 2018-06-06 | Koito Manufacturing Co., Ltd. | Automobilscheinwerfervorrichtung |
-
2012
- 2012-09-25 FR FR1258970A patent/FR2995973B1/fr active Active
-
2013
- 2013-09-19 EP EP13185229.5A patent/EP2711612B1/de active Active
- 2013-09-24 US US14/034,856 patent/US9200760B2/en active Active
- 2013-09-24 JP JP2013197158A patent/JP6257980B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2849156A1 (fr) | 2002-12-20 | 2004-06-25 | Valeo Vision | Projecteur de vehicule automobile assurant au moins deux fonctions |
US20050041434A1 (en) * | 2003-08-20 | 2005-02-24 | Yasushi Yatsuda | Light Source and vehicle lamp |
EP2280215A2 (de) * | 2009-07-31 | 2011-02-02 | Zizala Lichtsysteme GmbH | LED-Kraftfahrzeugscheinwerfer zur Erzeugung einer dynamischen Lichtverteilung |
DE202010001654U1 (de) * | 2010-02-01 | 2010-05-20 | Delvis Gmbh | Leuchtsystem für ein Kraftfahrzeug |
Also Published As
Publication number | Publication date |
---|---|
JP6257980B2 (ja) | 2018-01-10 |
US9200760B2 (en) | 2015-12-01 |
EP2711612B1 (de) | 2023-04-26 |
FR2995973A1 (fr) | 2014-03-28 |
FR2995973B1 (fr) | 2019-04-05 |
US20140085920A1 (en) | 2014-03-27 |
JP2014067714A (ja) | 2014-04-17 |
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