WO2017046031A1 - Module d'éclairage pour véhicule automobile - Google Patents
Module d'éclairage pour véhicule automobile Download PDFInfo
- Publication number
- WO2017046031A1 WO2017046031A1 PCT/EP2016/071428 EP2016071428W WO2017046031A1 WO 2017046031 A1 WO2017046031 A1 WO 2017046031A1 EP 2016071428 W EP2016071428 W EP 2016071428W WO 2017046031 A1 WO2017046031 A1 WO 2017046031A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lighting module
- shaping
- light source
- diopters
- light
- Prior art date
Links
- 238000007493 shaping process Methods 0.000 claims abstract description 35
- 230000003287 optical effect Effects 0.000 claims abstract description 11
- 239000004065 semiconductor Substances 0.000 claims abstract description 9
- 230000004075 alteration Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000000926 separation method 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
- 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]
- F21S41/155—Surface emitters, e.g. organic light emitting diodes [OLED]
-
- 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
- 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
- F21S41/36—Combinations of two or more separate reflectors
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/20—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
- H01L33/24—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate of the light emitting region, e.g. non-planar junction
-
- 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]
- F21S41/147—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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
Definitions
- the invention relates to a lighting module for a motor vehicle, comprising a light source provided with a plurality of semiconductor emitters and optical means for shaping the light emitted by the light source.
- the semiconductor emitters are light-emitting diodes (LEDs) integrally connected to each other in the form of a matrix.
- Such a lighting module benefits from the advantages of light-emitting diodes, in particular their low energy consumption and a service life of the order of that of the equipped vehicle.
- the LEDs are assembled into lines and columns, which is not without faults and leaves such a space between the LEDs that an outgoing light beam, generated by the lighting module, comprises multiple dark areas.
- each LED has a low luminance which limits the light intensity of the light beam emitted by the lighting module for an apparent surface and therefore a given size.
- the luminance of the LEDs is limited by their implementation principle.
- the luminous intensity of the light beam emitted by the lighting module must be high.
- the light beam emitted by the lighting module turns out to be fuzzy and colored, and it is then necessary, in order to make it conform to the legislation in force, to complicate the formatting means by multiplying the number of correction elements, which inevitably impacts the final cost of the lighting module as well as its weight and bulk.
- the object of the invention is to at least partially overcome these disadvantages.
- the subject of the invention is a lighting module for a motor vehicle, comprising a semiconductor light source comprising electroluminescent rods of submillimetric dimensions, and at least one optics for shaping the light rays emitted by the light source, the light source comprising at least two selectively activatable zones, and the luminance of at least one activatable zone being at least greater than 80 Cd / mm 2 .
- a small opening of the shaping means is sufficient to achieve a desired light intensity, even in high beam configuration, which makes it possible to guard against chromatic and geometric aberrations.
- the luminance of at least one activatable zone is at least greater than 100 Cd / mm 2 , or even greater than 120 Cd / mm 2 .
- the optics for shaping light comprises at least two diopters.
- the shaping optics comprises at most four diopters.
- the shaping optics consists of a primary optic and a lens or a glued doublet or a mirror and a lens.
- the optical shaping of the light comprises at most three diopters.
- the shaping optics consists of a glued triplet or a peeled doublet or a glued doublet and a mirror or a lens and two mirrors.
- FIG. 1 illustrates a cross sectional view of a lighting module according to the present invention
- FIG. 2 illustrates a perspective view of a submillimetric electroluminescent rod of a light source of the lighting module of FIG. 1;
- FIG. 3 illustrates a cross-sectional view of the light source of FIG. 2
- FIG. 4 illustrates a cross-sectional view of a shaping optics of the lighting module of FIG. 1 according to one embodiment
- FIG. 5 illustrates a more detailed perspective view of a shaping optics of the lighting module of FIG. 1
- FIG. 6 illustrates a perspective view of a shaping optics of the lighting module of FIG. 1 according to another embodiment
- FIG. 7 illustrates a perspective view of a shaping optics of the lighting module of Figure 1 according to another embodiment.
- the subject of the invention is a lighting module for a motor vehicle, referenced 1.
- the lighting module 1 comprises a semiconductor light source 2 capable of emitting light rays and at least one optics 3 for shaping the light rays emitted by the light source.
- the light source 2 comprises at least one electroluminescent rod 4.
- Figure 2 depicts in detail a light emitting rod 4.
- the electroluminescent rod 4 has submillimeter dimensions.
- the electroluminescent rod 4 is a diode of a general vertical column shape, for example of hexagonal section.
- the electroluminescent rod 4 comprises an assembly 5 of at least three layers disposed substantially orthogonally to a substrate.
- a first vertical layer 6 of the assembly 5 is constituted by a semiconductor material of a first type of doping, while a second vertical layer 7 of the assembly 5 is constituted by a semiconductor material. a second type of doping, opposite to the first type.
- the first vertical layer 6 is of N type for negative (electron doping)
- the second vertical layer 7 is of type P for positive (doping to create holes)
- the first vertical layer 6 is of type P
- the second vertical layer 7 is of N.
- An active layer 8 of the assembly 5 constitutes a recombination zone of the electron-hole pairs of the semiconductor layers 6 and 7.
- Two electrodes are respectively connected to the first active layer 6 and the second active layer 7, so that an electric current can be generated in the electroluminescent rod 4.
- the layers 6, 7 and 8 of the assembly 5 extend substantially parallel to each other.
- the recombination of the electron-hole pairs along the active layer 8 ensures that light rays are emitted in a preferred manner in a radial direction of the electroluminescent rod 4.
- the layers 6 and 7 are for example composed of GaN.
- the substrate comprises, for example, Si.
- each layer 6, 7 and 8 extends over a length of the order of a few micrometers, for example of the order of 2 ⁇ , for a section of the order of 1, 6 ⁇ of diameter.
- the light source 2 preferably comprises a plurality of electroluminescent rods 4, advantageously identical to each other.
- the electroluminescent rods 4 extend substantially parallel to each other.
- the electroluminescent rods 4 are spaced from each other by a distance for example of the order of 10 ⁇ .
- the light source 2 comprises at least two selectively activatable zones, the luminance of at least one activatable zone being at least greater than 80 Cd / mm 2 .
- the luminance of at least one activatable zone is at least greater than 100 Cd / mm 2 , or even greater than 120 Cd / mm 2 .
- Optical shaping means an optical device comprising at least one diopter and configured to deflect at least a portion of the light rays emitted by the source.
- the optical shaping 3 of the light rays emitted by the light source 2 ensures a controlled projection of the rays emitted by the light source 2.
- the optical shaping of the light comprises at least two diopters.
- diopter interface separation of two different refractive index media.
- the shaping optics comprises at most four diopters, or even, advantageously, at most three diopters.
- the shaping optics is simplified compared to the state of the art; in particular, a weak opening is sufficient to obtain a desired intensity of the image projected by the lighting module 1.
- the shaping optics 3 comprises for example a lens or two mirrors arranged with respect to each other so as to form a telescope.
- the telescope has the advantage of being achromatic.
- each diopter, or at least one of the diopters has diffractive patterns.
- the shaping optics is constituted by a glued doublet, also called achromatic doublet.
- the bonded doublet comprises a plano-concave lens 9 and a biconvex lens.
- the concave diopter of the lens 9 is in contact with one of the convex diopters of the biconvex lens 10, their concavities being identical in absolute value.
- the diameter of each lens is of the order of 30 mm.
- the focal length of the glued doublé is of the order of 50 mm.
- the bonded doublet comprises two biconcave lenses 1 1 and 12.
- One of the concave diopters of the lens 1 1 is in contact with one of the concave diopters of the lens 12, their concavities being identical.
- one of the lenses is for example silicone.
- the optics of shaping 3 with three diopters is constituted by a lens 13 and a mirror 14.
- the mirror 14 is a non-planar folding mirror designed in collaboration with the lens in order to minimize the geometrical aberrations of the shaping optics 3.
- the shaping optics 3 also comprises a heat sink 18.
- the shaping optics is constituted by a prism with three faces, preferably, at least one of the faces is not flat.
- a light ray of the light source 2 enters the prism by refraction on a first face of the prism, before being reflected by a second face of the prism.
- the light ray emerges from the prism by refraction on a third face.
- the shaping optics consists of three mirrors.
- the shaping optics is constituted, in variants not illustrated, by a glued triplet, or a detached doublet, or a glued doublet and a mirror, or four mirrors, or a prism three. faces and a mirror, or a double prism bar.
- the detached doublet is for example Galilée type glasses or a Gauss doublet.
- the double prism bar allows an input of a light beam emitted by the source 2 by refraction on a first face of the bar, then a first and a second reflection on two other faces of the bar.
- the shaping optics is constituted by a mirror 15, an input lens 16 and an exit lens 17.
- a light beam emitted by the light source 2 is reflected by the mirror 15, then passes successively through the lenses 16 and 17.
- a weak opening is sufficient to obtain a desired intensity of the image projected by the lighting module 1, which simplifies the optics of the light. formatting and reduce the number of dioptres.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Led Device Packages (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680053362.4A CN108139060A (zh) | 2015-09-14 | 2016-09-12 | 用于机动车辆的照明模块 |
US15/759,630 US10400971B2 (en) | 2015-09-14 | 2016-09-12 | Lighting module with dioptric interface for motor vehicle |
EP16763824.6A EP3350504A1 (fr) | 2015-09-14 | 2016-09-12 | Module d'éclairage pour véhicule automobile |
KR1020187010360A KR20180052727A (ko) | 2015-09-14 | 2016-09-12 | 자동차용 조명 모듈 |
JP2018513635A JP2018530869A (ja) | 2015-09-14 | 2016-09-12 | 自動車両用の照明モジュール |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1558526 | 2015-09-14 | ||
FR1558526A FR3041074B1 (fr) | 2015-09-14 | 2015-09-14 | Module d'eclairage pour vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017046031A1 true WO2017046031A1 (fr) | 2017-03-23 |
Family
ID=54707947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/071428 WO2017046031A1 (fr) | 2015-09-14 | 2016-09-12 | Module d'éclairage pour véhicule automobile |
Country Status (7)
Country | Link |
---|---|
US (1) | US10400971B2 (fr) |
EP (1) | EP3350504A1 (fr) |
JP (1) | JP2018530869A (fr) |
KR (1) | KR20180052727A (fr) |
CN (1) | CN108139060A (fr) |
FR (1) | FR3041074B1 (fr) |
WO (1) | WO2017046031A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102056169B1 (ko) | 2017-12-05 | 2020-01-22 | 제트카베 그룹 게엠베하 | 차량용 램프 및 차량 |
US10490690B1 (en) * | 2018-06-25 | 2019-11-26 | Newgo Design Studio | Vertical cylindrical reaction chamber for micro LED epitaxy and linear luminant fabrication process |
CN112584567B (zh) * | 2019-09-30 | 2024-01-26 | 宁波舜宇车载光学技术有限公司 | 多芯片照明系统及其控制方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010014032A1 (fr) * | 2008-07-07 | 2010-02-04 | Glo Ab | Del nanostructurée |
EP2306074A2 (fr) * | 2009-10-05 | 2011-04-06 | Automotive Lighting Reutlingen GmbH | Phare de véhicule automobile doté de sources semi-conductrices, un module optique comprenant une optique primaire et une optique secondaire |
EP2357676A1 (fr) * | 2008-10-17 | 2011-08-17 | National University Corporation Hokkaido University | Réseau d'éléments électroluminescents à semi-conducteurs et son procédé de fabrication |
FR2983639A1 (fr) * | 2011-12-01 | 2013-06-07 | Commissariat Energie Atomique | Dispositif optoelectronique comprenant des nanofils de structure coeur/coquille |
US20150118777A1 (en) * | 2013-10-31 | 2015-04-30 | Yeon Woo Seo | Nano-structure semiconductor light emitting device |
-
2015
- 2015-09-14 FR FR1558526A patent/FR3041074B1/fr not_active Expired - Fee Related
-
2016
- 2016-09-12 JP JP2018513635A patent/JP2018530869A/ja active Pending
- 2016-09-12 EP EP16763824.6A patent/EP3350504A1/fr not_active Withdrawn
- 2016-09-12 WO PCT/EP2016/071428 patent/WO2017046031A1/fr active Application Filing
- 2016-09-12 KR KR1020187010360A patent/KR20180052727A/ko unknown
- 2016-09-12 US US15/759,630 patent/US10400971B2/en not_active Expired - Fee Related
- 2016-09-12 CN CN201680053362.4A patent/CN108139060A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010014032A1 (fr) * | 2008-07-07 | 2010-02-04 | Glo Ab | Del nanostructurée |
EP2357676A1 (fr) * | 2008-10-17 | 2011-08-17 | National University Corporation Hokkaido University | Réseau d'éléments électroluminescents à semi-conducteurs et son procédé de fabrication |
EP2306074A2 (fr) * | 2009-10-05 | 2011-04-06 | Automotive Lighting Reutlingen GmbH | Phare de véhicule automobile doté de sources semi-conductrices, un module optique comprenant une optique primaire et une optique secondaire |
FR2983639A1 (fr) * | 2011-12-01 | 2013-06-07 | Commissariat Energie Atomique | Dispositif optoelectronique comprenant des nanofils de structure coeur/coquille |
US20150118777A1 (en) * | 2013-10-31 | 2015-04-30 | Yeon Woo Seo | Nano-structure semiconductor light emitting device |
Also Published As
Publication number | Publication date |
---|---|
FR3041074A1 (fr) | 2017-03-17 |
US10400971B2 (en) | 2019-09-03 |
US20180252378A1 (en) | 2018-09-06 |
EP3350504A1 (fr) | 2018-07-25 |
FR3041074B1 (fr) | 2020-01-17 |
CN108139060A (zh) | 2018-06-08 |
KR20180052727A (ko) | 2018-05-18 |
JP2018530869A (ja) | 2018-10-18 |
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