EP1224419A1 - Scheinwerfer für ein kraftfahrzeug - Google Patents
Scheinwerfer für ein kraftfahrzeugInfo
- Publication number
- EP1224419A1 EP1224419A1 EP00967834A EP00967834A EP1224419A1 EP 1224419 A1 EP1224419 A1 EP 1224419A1 EP 00967834 A EP00967834 A EP 00967834A EP 00967834 A EP00967834 A EP 00967834A EP 1224419 A1 EP1224419 A1 EP 1224419A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- cover plate
- housing
- coating
- outlet opening
- 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
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims description 17
- 239000006117 anti-reflective coating Substances 0.000 claims description 15
- 230000003595 spectral effect Effects 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 229920000515 polycarbonate Polymers 0.000 claims description 2
- 239000004417 polycarbonate Substances 0.000 claims description 2
- 101100495769 Caenorhabditis elegans che-1 gene Proteins 0.000 claims 1
- 230000004313 glare Effects 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments 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
- 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
- F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
-
- 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
- F21S41/28—Cover glass
-
- 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 a vehicle headlight with a housing which has a light exit opening, a translucent cover plate covering the light exit opening and at least one lamp arranged in the housing.
- Vehicle headlights are used for traffic safety. With their help, the road ahead of the motor vehicle is illuminated in the dark or in poor visibility. In addition, oncoming vehicles can be recognized from a great distance thanks to their headlights being switched on.
- a vehicle headlight is known from German published patent application DE 195 11 164 A1, in which an assembly-related gap on the reflector of the headlight is bridged with the aid of an additional reflector. This creates at The viewer sees the impression of a continuous reflector, which improves the visual impression of the vehicle headlight.
- cover frames at the transition from the housing of the headlamp to the cover pane in order to cover the gap formed there and thus likewise to improve the visual impression.
- an insert can also be provided, as disclosed in German utility model DE 298 22 704 U1.
- the invention is accordingly based on the object of providing a headlight for motor vehicles in which the proportion of light which causes self-glare is reduced.
- the surface of the cover or lens which faces the at least one illuminant and which preferably consists of clear glass is provided with an anti-reflective coating, i.e. provided with a reflection-reducing coating, as a result of which a very large percentage of the light emitted by the lamp or lamps penetrates the cover pane.
- the outer surface of the cover plate can also be provided with an anti-reflective coating. This further reduces the proportion of light reflected back from the cover plate into the housing interior of the vehicle headlight.
- Another solution to the object of the invention is to provide the surfaces within the housing which the light rays reflected from the cover plate meet with an anti-reflective coating, so that at least a high percentage of these light rays pass through the surface and are not reflected.
- This measure can be provided both alone and together with the anti-reflective coating of the cover plate.
- the anti-reflective coating consists of a reflection-reducing multiple coating.
- Such multiple coatings are well known for other applications.
- the surface on which the light rays reflected from the cover plate strike has an anti-reflective coating, it can further be provided that means are provided behind this surface with respect to the incident light rays, which absorb at least a large proportion of the light rays penetrating the surface.
- cover plate has means which remove the light reflected by the reflecting surface or the surfaces of the housing interior, i. absorb the light that strikes at a defined angle or a defined part of the cover plate and / or reflect or polarize into the interior of the housing.
- These means preferably consist of a coating.
- a coating is to arrange or align particles of this coating or to apply a polarizing coating.
- Another possibility is the arrangement of structural elements, in particular prisms.
- the headlight of a motor vehicle shown in Fig. 1 consists of a housing 1, the light outlet opening 2 is closed by a translucent, curved cover plate 3 made of clear glass.
- a reflector 4 is arranged within the housing 1 and reflects the light rays 6 emitted by the illuminant 5 towards the cover plate 3.
- a large part 6a of the light rays penetrate to the outside.
- a smaller part 6b of the light rays is reflected back on the cover plate 3 and, due to the curvature of the cover plate 3, strikes reflective surfaces 7 within the housing 1.
- These surfaces 7 can e.g. appear on the design-related mirrored panels 8, which in turn, as shown in FIG. 1, are arranged as a single component or as an extending part of the reflector 4.
- the incident light beams 6b are in turn reflected on these surfaces 7. Due to the arrangement of the surfaces 7, the light beams 6c reflected by the surfaces 7 rise essentially vertically upwards and penetrate the cover plate 3. Under bad weather conditions, this light causes the driver to be self-dazzling.
- the surface 3a of the transparent cover plate 3 facing the at least one illuminant 5 is provided with an anti-reflective coating.
- Anti-reflective coatings which are produced by a reflection-reducing coating, are available for other applications and for a wide variety of translucent materials.
- GEDOLIN 85 available multiple coating for organic substrates made of polycarbonate or acrylic achieves a similar reduction in reflection.
- the outer surface 3b of the cover plate 3 reflects light rays back, which can then hit the reflecting surface 7 of the diaphragm 8, it is provided according to FIG. 2 that the outer surface 3b of the cover plate 3 is additionally provided with an anti-reflective coating.
- the reflecting surface 7 of the decorative panel 8 is in FIG. 3, but at least the part of the surface 7 onto which the light beams reflected by the cover plate 3 are directed 6b impact with a reflection-reducing coating.
- Means 9 for absorbing these light rays are then preferably provided behind the aperture 8 for the light rays penetrating the aperture 8.
- Cover disc a Inner surface of the cover disc eb Outer surface of the cover disc
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19948731 | 1999-10-09 | ||
| DE19948731 | 1999-10-09 | ||
| DE10033776 | 2000-07-12 | ||
| DE10033776A DE10033776B4 (de) | 1999-10-09 | 2000-07-12 | Scheinwerfer für ein Kraftfahrzeug |
| PCT/EP2000/009637 WO2001027526A1 (de) | 1999-10-09 | 2000-10-02 | Scheinwerfer für ein kraftfahrzeug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1224419A1 true EP1224419A1 (de) | 2002-07-24 |
| EP1224419B1 EP1224419B1 (de) | 2011-05-04 |
Family
ID=26006351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00967834A Expired - Lifetime EP1224419B1 (de) | 1999-10-09 | 2000-10-02 | Scheinwerfer für ein kraftfahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1224419B1 (de) |
| CN (1) | CN1254628C (de) |
| WO (1) | WO2001027526A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004004398A1 (de) * | 2003-05-23 | 2004-12-09 | Volkswagen Ag | Scheinwerfer oder Leuchte für ein Kraftfahrzeug |
| CN100462619C (zh) * | 2004-06-30 | 2009-02-18 | 苏志国 | 一种不眩目车灯 |
| JP4425764B2 (ja) * | 2004-11-05 | 2010-03-03 | 本田技研工業株式会社 | 自動二輪車のヘッドランプ構造 |
| CN100532924C (zh) * | 2005-02-24 | 2009-08-26 | 张静中 | 带防眩光装置的照明灯具 |
| CN104654157A (zh) * | 2013-11-19 | 2015-05-27 | 丹阳市中远车灯有限公司 | 汽车前照灯 |
| DE102015216746A1 (de) * | 2015-09-02 | 2017-03-02 | Volkswagen Aktiengesellschaft | Fahrzeugleuchte und Verfahren zum Bereitstellen einer Lichtfunktion mittels einer Fahrzeugleuchte |
| JP2018192881A (ja) * | 2017-05-16 | 2018-12-06 | 矢崎総業株式会社 | 室内照明灯 |
| KR102744623B1 (ko) * | 2019-09-04 | 2024-12-23 | 제트카베 그룹 게엠베하 | 자동차 헤드램프 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE965428C (de) * | 1940-10-04 | 1957-06-06 | Bosch Gmbh Robert | Scheinwerfer, vorzugsweise fuer Fahrzeuge |
| US3631288A (en) * | 1970-01-23 | 1971-12-28 | Polaroid Corp | Simplified polarized light projection assembly |
| DE2516950C3 (de) * | 1975-04-17 | 1979-07-12 | Robert Bosch Gmbh, 7000 Stuttgart | Streuscheibe für Scheinwerfer von Fahrzeugen |
| US4173778A (en) * | 1976-07-28 | 1979-11-06 | Optical Coating Laboratory, Inc. | Lighting fixtures and glass enclosure having high angle anti-reflection coating |
| US4225908A (en) * | 1978-07-20 | 1980-09-30 | Optical Coating Laboratory, Inc. | Lighting fixture and glass enclosure having high angle anti-reflection film |
| US4646207A (en) * | 1984-04-10 | 1987-02-24 | Gte Products Corporation | Motor vehicle lighting system including a sealed lens member as part thereof |
| DE19511164A1 (de) | 1995-03-28 | 1996-10-02 | Teves Gmbh Alfred | Fahrzeugleuchte mit Freiformflächenreflektor und brillanter transparenter Abdeckscheibe |
| DE29822704U1 (de) | 1998-12-21 | 1999-02-18 | Volkswagen Ag | Fahrzeugscheinwerfer |
-
2000
- 2000-10-02 EP EP00967834A patent/EP1224419B1/de not_active Expired - Lifetime
- 2000-10-02 CN CNB008140154A patent/CN1254628C/zh not_active Expired - Fee Related
- 2000-10-02 WO PCT/EP2000/009637 patent/WO2001027526A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0127526A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001027526A1 (de) | 2001-04-19 |
| EP1224419B1 (de) | 2011-05-04 |
| CN1378631A (zh) | 2002-11-06 |
| CN1254628C (zh) | 2006-05-03 |
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