EP3158258A1 - Dispositif d'éclairage et/ou de signalisation generant une lumiere homogene sur un ecran - Google Patents
Dispositif d'éclairage et/ou de signalisation generant une lumiere homogene sur un ecranInfo
- Publication number
- EP3158258A1 EP3158258A1 EP15732826.1A EP15732826A EP3158258A1 EP 3158258 A1 EP3158258 A1 EP 3158258A1 EP 15732826 A EP15732826 A EP 15732826A EP 3158258 A1 EP3158258 A1 EP 3158258A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- light
- lighting
- screen
- 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.)
- Granted
Links
- 230000011664 signaling Effects 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 9
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 3
- 230000006870 function Effects 0.000 description 14
- 238000005192 partition Methods 0.000 description 7
- 230000009131 signaling function Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005375 photometry Methods 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
- 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]
-
- 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
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
-
- 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
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
-
- 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
- F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
-
- 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
- F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
Definitions
- the invention relates to lighting and / or signaling devices, and more particularly relates to the so-called "lantern" function providing the rear signaling of vehicles, especially motor vehicles.
- This type of function must of course fulfill the regulatory requirements regarding luminous intensity, photometry, colorimetry and distribution of the luminous flux in the visibility space and in particular in the rear space of the vehicle as regards signaling rear lamps. ensuring the "lantern" function.
- Another requirement which is not regulatory but which becomes unavoidable, is that of the aesthetics of the lighting and / or signaling functions.
- the components generating the light beams, their associated optics and their renderings for an outside observer participate in the visual signature of a vehicle model and / or its mark and may be elements that fall within the selection criteria at the time of the inspection. act of purchase of a vehicle.
- light and / or signaling device is understood here to mean a device or equipment comprising a reflector, arranged in such a way as to send light rays coming from a bulb-type light source to a given direction. a plurality of light sources such as light emitting diodes (or LEDs).
- FIG. 1 illustrates a left front optical block 1 of a vehicle automobile in which is implanted a signaling device 2 of the state of the art.
- This optical unit 1 and its lighting device 2 are described in the document FR2960639.
- the signaling function is performed from a bar 3 shaped to present faces 4 of generally parabolic, adjacent, defining as many reflectors 5 than faces 4.
- the parabolic faces 4 of the reflectors 5 are respectively connected to each other by optically neutral junction elements 6.
- An electronic circuit 7 in the form of a printed circuit board (PCB), supports a plurality of LEDs 8 arranged so that their active surfaces 9 respectively face the center of each parabola 4 to create a plurality of oriented light beams 10 towards a screen not shown, able to diffuse light received on the entire surface of the screen.
- the junction elements 6 do not receive a light beam generated by the LEDs 8.
- junction elements 6 reveal, for an observer located at the front of the vehicle, and facing the screen, as many dark areas as junctions 6. This results in a degradation of the homogeneity of the lighting function and / or signaling and therefore rendering these functions, which creates an unsightly effect, and detracts from the overall impression of quality.
- the invention therefore aims to propose an alternative solution that improves the situation.
- a lighting and / or signaling device comprising a plurality of adjacent light sources capable of emitting light rays, a reflector arranged facing the plurality of light sources and able to reflect the light rays emitted by the plurality of light sources and a screen adapted to receive and diffuse the light rays reflected by the reflector, characterized in that said reflector is shaped to have a single concave reflecting surface, extending opposite the plurality of light sources. light and whose dimensions are adapted to illuminate at least one predefined pattern on the screen.
- the reflective face of the reflector comprises a variable radius curvature.
- the radius of curvature follows a parabolic profile.
- the reflecting face defines a reflecting sheet of white color.
- the reflective ply is obtained by profiling.
- the reflector is obtained after molding of an insert on, or integral with, the housing; the reflecting face being a layer of light reflective material attached to the concave portion of the reflector or tinted in the mass.
- the reflecting face is white.
- the screen is sandblasted or grained or opaline to define light patterns of determined shapes on the screen.
- the light sources are LEDs supported by the same printed circuit board (38) extending along the large dimension of the reflector.
- the invention has another object, a vehicle rear light, characterized in that it comprises at least one lighting and / or signaling device as described above.
- FIG. 1 already described, illustrates in a perspective view, a part of an optical unit equipped with a lighting device according to the state of the art
- FIG. 2 already described, schematically illustrates a detail view of the lighting device of FIG. 1;
- FIG. 3 illustrates in a perspective view a rear light of a motor vehicle equipped with a lighting device according to the invention
- - Figure 4 schematically illustrates the rear light of Figure 3 in a cross-sectional view along the cutting axes IV-IV of Figure 3;
- FIG. 5 illustrates, in a perspective view, a profiled reflector of a lighting device according to the invention.
- the invention aims to provide a lighting device whose screen provides a uniform illumination.
- the lighting device is intended for the lighting function of "lantern” type and is part of a vehicle rear light, possibly of the automotive type .
- the lighting device can be DRL type ("Daytime running Light (Gold Lamp)") to be automatically put into operation (or on) when the vehicle that team begins to advance.
- DRL type Daytime running Light (Gold Lamp)
- Other applications outside the automotive field are also possible
- FIG. 3 illustrates, in a perspective view, a left rear light 100 of a motor vehicle equipped with a lighting device 20 according to the invention, which is intended to perform the "lantern" function.
- FIG. 4 schematically illustrates the rear light of FIG. 3 in a cross-sectional view along the cutting axes IV-IV of FIG. 3.
- the rear light 100 comprises a housing 30 sealingly enclosing several lighting and / or signaling functions.
- the two chambers 31 and 32 are separated by a horizontal partition wall 33 partially closing the chambers 31 and 32 to leave a central passage 34 between the two chambers 31 and 32.
- the two chambers 31 and 32 are sealed by a common ice 35 or by two separate windows specific to each chamber 31 or 32.
- the rear face 36 of the upper half 31 of the housing 30 supports a light source 37 of the bulb type to achieve, for example, the function "stop light".
- the first chamber 31 channels the light emitted by the source towards the outside of the light 100 protected by the ice 35.
- the partition wall 33 of the first and second chambers 31 and 32 supports, in the vicinity of the rear face 36 of the housing 30, a printed circuit board 38 in the form of a bar, itself supporting a plurality of LEDs 39.
- the bar 38 extends in the plane of the partition 33, perpendicularly to the window 35 and is arranged to present the active surfaces 40 of the LEDs 39 facing the lower face 41 of the housing 30.
- LED lighting is dedicated to the "lantern" function.
- a single reflector 50 is disposed and fixed inside the second chamber 32 and extends in a direction parallel to the bar 38 between the bar 38 and the lower face 41 of the housing 30.
- the reflector 50 is arranged to return all the light rays, emitted by the LEDs 39 in a first generally vertical direction, towards the lens 35 in a second horizontal general direction.
- the reflector 50 is in the form of a sheet obtained for example by profiling a plastic material such as ABS. -PC whose face 51, intended to be opposite the active surfaces 40 of the LEDs 39, is covered with a light reflecting layer or tinted in the mass of the reflector 50.
- the color of the reflecting face 51 is preferably selected "White”: color that "bursts” the light reflected on the face 51 and reinforces the homogenous appearance of the lighting of a screen in comparison with a reflecting surface of "aluminum” color that can favor "hot spots” otherwise says more reflective areas than others.
- the dimensions and the shape of the reflecting face 51 which in the embodiment can be confused with the sheet 50 itself, are determined so as to obtain the lantern function with a specific visual effect for an observer located at the rear of the vehicle and therefore in front of the taillight 100.
- the lantern function is restored by a convex screen 60 arranged and fixed in the second chamber 32 of the housing 30.
- the lower portion of the convex shield 60 rests on the lower peripheral edge of the housing 30 and its side edges conform to the side edges of the housing 30.
- the upper part of the screen 60 stops inside the housing substantially in the center of the second chamber 32 and below the horizontal partition wall 33 so as to leave a passage between the partition 33 and the screen 60 .
- the screen 60 defines light patterns in the general shape of two concentric half-rings 61 and 62: a luminous half-ring 61 and an outer luminous half-ring 62.
- the two patterns 61 and 62 are made on the screen 60 by known techniques of sanding, graining or use of an opaline material or any other method or material capable of diffusing a beam bright uniformly over the entire surface of patterns 61 and 62.
- the two half-rings 61 and 62 are separated by an area 63 opaque to the light advantageously highlighting the patterns 61 and 62 when they are illuminated.
- the dimensions and the shape of the reflective surface 51 of the reflector 50 - length L (along Y), width l (along X), height H (along Z) and radius of curvature R - are adapted to receive, on the one hand, all the light rays emitted by the plurality of LEDs 39 and, secondly, to return said rays to the patterns 61 and 62 of the screen 60 with the minimum loss of luminous flux.
- the reflective layer 50 has a radius of curvature R progressively increasing from its upper part to its characteristic lower part of a parabolic form.
- the reflector 50 may constitute an integral part (material coming by molding) of the casing 30 or it may be an attached molded part which is housed in the casing 30.
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)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1455627A FR3022608B1 (fr) | 2014-06-19 | 2014-06-19 | Dispositif d'eclairage et/ou de signalisation generant une lumiere homogene sur un ecran |
PCT/FR2015/051436 WO2015193575A1 (fr) | 2014-06-19 | 2015-06-01 | Dispositif d'éclairage et/ou de signalisation generant une lumiere homogene sur un ecran |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3158258A1 true EP3158258A1 (fr) | 2017-04-26 |
EP3158258B1 EP3158258B1 (fr) | 2021-01-13 |
Family
ID=51518997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15732826.1A Active EP3158258B1 (fr) | 2014-06-19 | 2015-06-01 | Dispositif d'éclairage et/ou de signalisation generant une lumiere homogene sur un ecran |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3158258B1 (fr) |
CN (1) | CN106662303B (fr) |
FR (1) | FR3022608B1 (fr) |
WO (1) | WO2015193575A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3062454B1 (fr) * | 2017-01-27 | 2019-03-15 | Peugeot Citroen Automobiles Sa | Dispositif d’eclairage a masque a motifs 3d |
FR3062452B1 (fr) * | 2017-01-27 | 2019-03-29 | Peugeot Citroen Automobiles Sa | Dispositif d’eclairage a masque a face avant eclairee par l’image d’une piece de couleur |
FR3062708A1 (fr) * | 2017-02-07 | 2018-08-10 | Peugeot Citroen Automobiles Sa | Bloc optique de vehicule a face interne eclairee et visible de l’exterieur |
CN110594694A (zh) * | 2018-06-12 | 2019-12-20 | 法雷奥市光(中国)车灯有限公司 | 光图案化装置、包括该光图案化装置的车灯及机动车辆 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU1012276A (en) * | 1975-01-23 | 1977-07-14 | Lucas Electrical Co Ltd | Lamp reflectors |
JP4786420B2 (ja) * | 2006-05-31 | 2011-10-05 | 株式会社小糸製作所 | 車両用灯具ユニット |
JP2008105556A (ja) * | 2006-10-25 | 2008-05-08 | Giken Co Ltd | 自動車用表示装置 |
DE102007033711A1 (de) * | 2007-07-17 | 2009-01-22 | Volkswagen Ag | Fahrzeugleuchtvorrichtung mit einem Zusatzreflektor zum seitlichen Umlenken eines Lichtteils einer Lichtquelle |
DE102007037822A1 (de) * | 2007-08-10 | 2009-02-12 | Osram Gesellschaft mit beschränkter Haftung | Beleuchtungsvorrichtung |
JP5008547B2 (ja) * | 2007-12-26 | 2012-08-22 | スタンレー電気株式会社 | 車両用灯具 |
DE102008019125A1 (de) * | 2008-04-16 | 2009-10-22 | Volkswagen Ag | Fahrzeugleuchte |
US7762701B2 (en) * | 2008-05-28 | 2010-07-27 | Osram Sylvania Inc. | Rear-loaded light emitting diode module for automotive rear combination lamps |
JP5483837B2 (ja) * | 2008-07-01 | 2014-05-07 | 株式会社小糸製作所 | 車両用灯具 |
DE102009009765A1 (de) * | 2009-02-20 | 2010-08-26 | Hella Kgaa Hueck & Co. | Signalleuchte für Fahrzeuge |
FR2953276B1 (fr) * | 2009-11-27 | 2011-11-18 | Peugeot Citroen Automobiles Sa | Dispositif d'eclairage a guide(s) de lumiere intercale(s) entre un reflecteur et un ecran |
KR101114068B1 (ko) * | 2009-12-01 | 2012-02-22 | 기아자동차주식회사 | 차량용 헤드램프 |
FR2960639B1 (fr) | 2010-05-28 | 2012-06-08 | Eurocopter France | Procede de surveillance d'anomalie structurale d'un ensemble mecanique |
JP5538089B2 (ja) * | 2010-06-23 | 2014-07-02 | スタンレー電気株式会社 | 車両用灯具ユニット |
JP5657358B2 (ja) * | 2010-12-02 | 2015-01-21 | スタンレー電気株式会社 | 車両用灯具 |
US8562190B2 (en) * | 2010-12-30 | 2013-10-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Rear lamp assembly |
JP5675465B2 (ja) * | 2011-03-31 | 2015-02-25 | 株式会社小糸製作所 | 車両用灯具 |
CN103090208B (zh) * | 2011-11-02 | 2016-09-07 | 欧司朗股份有限公司 | Led照明装置及其制造方法 |
CN202719520U (zh) * | 2012-01-04 | 2013-02-06 | 江苏文光车辆附件有限公司 | 一种led模组作为汽车灯具光源的灯具 |
FR2986305B1 (fr) * | 2012-01-30 | 2014-11-21 | Automotive Lighting Rear Lamps France | Dispositif pour rendre homogene l'aspect d'un feu de signalisation de vehicule automobile |
DE102012220455A1 (de) * | 2012-11-09 | 2014-05-15 | Osram Gmbh | Leuchtvorrichtung mit halbleiterlichtquelle |
DE202013001767U1 (de) * | 2013-02-23 | 2013-03-14 | Automotive Lighting Reutlingen Gmbh | Kraftfahrzeugleuchte mit einem homogen hell leuchtendenErscheinigungsbild |
-
2014
- 2014-06-19 FR FR1455627A patent/FR3022608B1/fr active Active
-
2015
- 2015-06-01 EP EP15732826.1A patent/EP3158258B1/fr active Active
- 2015-06-01 CN CN201580032827.3A patent/CN106662303B/zh active Active
- 2015-06-01 WO PCT/FR2015/051436 patent/WO2015193575A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN106662303B (zh) | 2019-12-24 |
CN106662303A (zh) | 2017-05-10 |
FR3022608A1 (fr) | 2015-12-25 |
WO2015193575A1 (fr) | 2015-12-23 |
FR3022608B1 (fr) | 2018-07-20 |
EP3158258B1 (fr) | 2021-01-13 |
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