EP3999773A1 - Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer - Google Patents
Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerferInfo
- Publication number
- EP3999773A1 EP3999773A1 EP20732221.5A EP20732221A EP3999773A1 EP 3999773 A1 EP3999773 A1 EP 3999773A1 EP 20732221 A EP20732221 A EP 20732221A EP 3999773 A1 EP3999773 A1 EP 3999773A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substrate layer
- micro
- lighting device
- section
- optically effective
- 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
- 238000005286 illumination Methods 0.000 title claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 53
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 239000011521 glass Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance 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
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/275—Lens surfaces, e.g. coatings or surface structures
-
- 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
- F21S41/10—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
- F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Definitions
- the invention relates to a lighting device for a motor vehicle headlight, which lighting device has at least one projection device, which projection device is arranged on a support frame of the lighting device, the at least one projection device comprising the following:
- At least one micro-optics array which a plurality in one to one
- Main emission direction of the projection device has an orthogonally standing plane arranged like a matrix micro-optics
- At least one substrate layer on which the at least one micro-optics array is arranged the at least one micro-optics array being arranged on an optically active section of the substrate layer, which optically active section is at least partially transparent,
- At least one light source which is set up to emit light beams, the light beams being coupled into the optically effective section of the substrate layer and being coupled out as a light distribution through the at least one micro-optic array in front of the lighting device.
- a light distribution is generated by an illumination device or its at least one projection device, the at least one or the plurality of
- Projection devices monüert on the support frame of the lighting device and must then be adjusted. In the case of several projection devices, these are also adjusted or aligned with one another.
- the substrate layer comprises an edge section encircling the optically effective section and protruding in a partially planar extent of the optically effective section, the edge section being at least partially attached to the support frame by means of an adhesive.
- the term “optically transparent” or “light-permeable material” means a material with a transmittance T greater than 0.88, preferably greater than 0.999.
- the specified degree of transmission preferably relates to light in a wavelength range between approximately 400 nm and approximately 700 nm (i.e. visible light).
- the at least one substrate layer and the at least one are preferably
- Micro-optics array arranged in parallel to one another and perpendicular to the optical axis or the main emission direction of the projection device.
- the optical axis of the projection device preferably coincides with the main emission direction of the
- the adhesive is applied at least in regions to the support frame and / or the edge section of the substrate layer.
- the micro-optics array which is arranged on the substrate layer, is then positioned in front of the support frame, the light source being switched on and the micro-optics array being illuminated. The resulting light distribution is measured and the micro-optics array is adjusted and finally aligned on the support frame.
- the adhesive is then cured. This process can be used for other projection devices
- Lighting device are repeated.
- the required installation space for example in a motor vehicle headlight, can be significantly reduced.
- the at least one substrate layer is made of glass.
- stability and thermal resistance it can be particularly advantageous to use the at least one substrate layer made of glass.
- a glass substrate layer increases the stability and strength of the projection device, which enables automated manufacturing processes, for example.
- a glass substrate layer offers high transparency and increases the chemical and thermal resistance of the
- the substrate layer has a thickness of 0.5 to 4 mm, preferably a thickness of 1.1 mm.
- the at least one micro-optics array is made from silicone.
- the use of transparent silicone increases the robustness of the projection device. Robust refers to the permanent connection between the micro-optical array and the substrate layer or permanent adhesion of the at least one micro-optical array to the at least one substrate layer.
- the substrate layer should therefore be formed from a material which has good light transparency and is dimensionally stable enough.
- Dimensionally stable enough in the context means that the substrate layer carries the micro-optic array made of (soft) silicone and both during the formation of the micro-optic array on the first surface of the
- Motor vehicle headlights do not lose their shape, i.e. against heat or the like.
- the at least one micro-optics array is formed from micro-optics formed in one piece with one another.
- edge section of the substrate layer is not optically effective.
- the edge section of the substrate layer is opaque. It can be provided that the lighting device has at least two projection devices.
- the support frame one to the at least one
- Projection device associated opening comprises, wherein the opening a
- edge area having circumferential edge area, which edge area corresponds to the edge section of the at least one substrate layer, wherein the edge section can be attached to the edge area of the opening by means of the adhesive.
- the extent of the opening corresponds at least to the extent of the opüsch effective section of the substrate layer.
- edge section completely surrounds the optically effective section of the substrate layer.
- the edge section protrudes from the optically effective section of the substrate layer in the radial direction to the main emission direction of the at least one projection device.
- FIG. 1 shows a cross section of an exemplary lighting device with two
- Projection devices which each comprise a micro-optics array on a substrate layer and are arranged on a support frame of the lighting device,
- FIG. 2 shows a cross section of an exemplary micro-optics array on a substrate layer, the micro-optics array being arranged on an optically effective section of the substrate layer, and wherein the substrate layer furthermore has an optically effective section
- FIG. 3 shows a top view of the exemplary micro-optics array on the substrate layer from FIG. 2.
- FIG. 1 shows an exemplary lighting device 10 for a
- Lighting device 10 in the example shown has two projection devices 100, the projection devices 100 being arranged on a support frame 50 of the lighting device 10.
- the projection devices 100 each include a micro-optics array 200 which has a plurality of micro-optics 210 arranged in a matrix-like manner in a plane orthogonal to a main emission direction X of the projection devices 100.
- the micro-optic arrays 200 are each on a substrate layer 300 of the respective
- Projection device 100 is arranged, wherein the micro-optics array 200 is arranged on an optically effective section 310 of the respective substrate layer 300, which optically effective section 310 is at least partially transparent.
- a projection device 100 comprises a light source 400 which is set up to emit light beams, wherein the light beams couple into the optically effective section 310 of the substrate layer 300 and through the micro-optics array 200 in front of the
- Lighting device 10 are coupled out as a light distribution.
- each substrate layer 300 comprises an edge section 320 which completely encircles the optically effective section 310 and protrudes in a planar extent of the optically effective section 310, the edge section 320 being at least partially attached to the support frame 50 by means of an adhesive 500.
- the edge section 320 projects over or in front of the visually effective section 310 of the substrate layer 300 in the radial direction to the main emission direction X of the respective projection device 100.
- the support frame 50 has an opening 51 assigned to each projection device 100, the opening 51 having a circumferential edge area 52, which edge area 52 corresponds to the edge section 320 of the respective substrate layer 300, the edge section 320 using the Adhesive 500 can be attached to the edge region 52 of the opening 51.
- the extent of the opening 51 corresponds to the extent of the optically effective section 310 of the substrate layer 300.
- FIG. 2 shows an exemplary substrate layer 300 with an optically effective section 310 and an edge section 320 protruding from the optically effective section 310, a micro-optics array 200 being arranged or positioned on the optically effective section 320. is attached.
- the edge section 320 is generally not optically effective and can be made opaque, ie the substrate layer 300 can be made from two different materials or in at least two work steps.
- the substrate layer can be made of glass, the micro-optics array 200 being made of silicone.
- FIG. 3 shows the exemplary substrate layer 300 with the micro-optics array 200 from FIG. 2 in a view from above.
- the micro-optics array 200 is formed from micro-optics 210 formed in one piece with one another.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (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 |
---|---|---|---|
EP19186770.4A EP3767161A1 (de) | 2019-07-17 | 2019-07-17 | Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer |
PCT/EP2020/066448 WO2021008793A1 (de) | 2019-07-17 | 2020-06-15 | Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3999773A1 true EP3999773A1 (de) | 2022-05-25 |
EP3999773B1 EP3999773B1 (de) | 2023-08-09 |
Family
ID=67437848
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19186770.4A Withdrawn EP3767161A1 (de) | 2019-07-17 | 2019-07-17 | Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer |
EP20732221.5A Active EP3999773B1 (de) | 2019-07-17 | 2020-06-15 | Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19186770.4A Withdrawn EP3767161A1 (de) | 2019-07-17 | 2019-07-17 | Beleuchtungsvorrichtung für einen kraftfahrzeugscheinwerfer |
Country Status (6)
Country | Link |
---|---|
US (1) | US11746980B2 (de) |
EP (2) | EP3767161A1 (de) |
JP (1) | JP2022541188A (de) |
KR (1) | KR20220015440A (de) |
CN (1) | CN114026360B (de) |
WO (1) | WO2021008793A1 (de) |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58119106A (ja) * | 1982-01-07 | 1983-07-15 | 日産自動車株式会社 | 車両用灯体 |
DE4106261A1 (de) * | 1991-02-28 | 1992-09-03 | Hella Kg Hueck & Co | Scheinwerfer fuer fahrzeuge |
DE102004045589A1 (de) * | 2004-09-17 | 2006-04-06 | Hella Kgaa Hueck & Co. | Leuchtvorrichtung für Kraftfahrzeuge |
DE102006039705A1 (de) * | 2006-08-18 | 2008-02-28 | Schott Ag | Linsenvorsatz für einen Scheinwerfer |
CN102353003B (zh) * | 2011-08-16 | 2013-10-23 | 胡文松 | 用于车辆之远、近灯的led投射灯具 |
DE102013214116C5 (de) * | 2013-07-18 | 2018-07-05 | Automotive Lighting Reutlingen Gmbh | Scheinwerfer für ein blendungsfreies Fernlicht |
JP6494241B2 (ja) * | 2014-10-28 | 2019-04-03 | 株式会社小糸製作所 | 二色成形品 |
ES2957573T3 (es) | 2015-05-22 | 2024-01-22 | Flex N Gate Advanced Product Dev Llc | Lámpara de proyección de imagen iluminada y método |
TW201736772A (zh) * | 2016-04-14 | 2017-10-16 | 鴻海精密工業股份有限公司 | 投射透鏡及車燈結構 |
DE102016119880A1 (de) * | 2016-10-19 | 2018-04-19 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge |
JP2018138949A (ja) * | 2017-02-24 | 2018-09-06 | コニカミノルタ株式会社 | 波長変換部材及び画像形成装置 |
DE102017104838A1 (de) * | 2017-03-08 | 2018-09-13 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge sowie Montageverfahren |
EP3492804A1 (de) * | 2017-12-04 | 2019-06-05 | ZKW Group GmbH | Kraftfahrzeugscheinwerfer und verfahren |
DE102018107214A1 (de) * | 2018-03-27 | 2019-10-02 | HELLA GmbH & Co. KGaA | Beleuchtungsvorrichtung für Fahrzeuge |
US11060680B2 (en) * | 2018-07-25 | 2021-07-13 | Hasco Vision Technology Co., Ltd. | Lighting display device |
-
2019
- 2019-07-17 EP EP19186770.4A patent/EP3767161A1/de not_active Withdrawn
-
2020
- 2020-06-15 KR KR1020217042679A patent/KR20220015440A/ko not_active Application Discontinuation
- 2020-06-15 US US17/623,444 patent/US11746980B2/en active Active
- 2020-06-15 CN CN202080047094.1A patent/CN114026360B/zh active Active
- 2020-06-15 WO PCT/EP2020/066448 patent/WO2021008793A1/de active Search and Examination
- 2020-06-15 EP EP20732221.5A patent/EP3999773B1/de active Active
- 2020-06-15 JP JP2022502408A patent/JP2022541188A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
KR20220015440A (ko) | 2022-02-08 |
EP3999773B1 (de) | 2023-08-09 |
CN114026360B (zh) | 2024-03-26 |
JP2022541188A (ja) | 2022-09-22 |
US11746980B2 (en) | 2023-09-05 |
WO2021008793A1 (de) | 2021-01-21 |
US20220349545A1 (en) | 2022-11-03 |
EP3767161A1 (de) | 2021-01-20 |
CN114026360A (zh) | 2022-02-08 |
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