DE1037983B - Motor vehicle headlights with two-filament lamps - Google Patents
Motor vehicle headlights with two-filament lampsInfo
- Publication number
- DE1037983B DE1037983B DEW18022A DEW0018022A DE1037983B DE 1037983 B DE1037983 B DE 1037983B DE W18022 A DEW18022 A DE W18022A DE W0018022 A DEW0018022 A DE W0018022A DE 1037983 B DE1037983 B DE 1037983B
- Authority
- DE
- Germany
- Prior art keywords
- reflector
- motor vehicle
- vehicle headlights
- headlight
- filament lamps
- 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.)
- Pending
Links
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
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
- F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
-
- 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
- F21S41/164—Incandescent light sources, e.g. filament or halogen lamps having two or more filaments
-
- 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
- F21S41/33—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature
- F21S41/331—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas
- F21S41/332—Multi-surface reflectors, e.g. reflectors with facets or reflectors with portions of different curvature the reflector consisting of complete annular areas with continuity at the junction between adjacent areas
-
- 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
- F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Kraftfahrzeugscheinwerfer mit Zweifadenlampe Die Erfindung bezieht sich auf einen Kraftfahrzeugscheinwerfer mit Zweifadenlampe, deren Fernlichtfaden im Brennpunkt des Reflektors sitzt und deren nach vorn herausgedrückter Abblendfaden mit einem Abblendlöffel unterlegt ist, und hat es sich zur Aufgabe gemacht, die Vorfeldbeleuchtung zu verstärken, um auf diese Weise eine möglichst gleichmäßige Ausleuchtung der Fahrbahn bei Abblendlicht zu erzielen, ohne jedoch an dem Charakter des Fernlichts etwas zu ändern. Die Erfindung kommt damit dem Bestreben entgegen, dem Abblendlicht eine größere Bedeutung zukommen zu lassen als bisher, da von dem Fernlicht bei der wachsenden Verkehrsdichte immer weniger Gebrauch gemacht werden kann.Motor vehicle headlights with two-filament lamp The invention relates on a motor vehicle headlight with two-filament lamp, whose high-beam filament sits in the focal point of the reflector and its dimming filament pushed out towards the front is underlaid with a dip spoon, and has made it its mission to provide the To intensify the apron lighting in order to achieve the most uniform possible To achieve illumination of the road with low beam, but without affecting the character to change something of the high beam. The invention thus meets the endeavor to give more importance to the low beam than before, because of the High beams are used less and less with the increasing density of traffic can.
Zu diesem Zweck wird gemäß der Erfindung bei einem Kraftfahrzeugscheinwerfer der oben gekennzeichneten Art die Lichtquelle aus der Scheinwerfermitte in der Vertikalachse derart nach unten verschoben, daß bei gleichbleibendem Gesamtdurchmesser die obere Reflektorhälfte größer ist als die untere.For this purpose, according to the invention, in a motor vehicle headlight of the type indicated above, the light source from the center of the headlight in the vertical axis shifted downwards in such a way that while the overall diameter remains the same, the upper The reflector half is larger than the lower half.
Durch diese Maßnahme erhält der Reflektor zwei ungleiche Hälften, von denen die obere Hälfte, also die, aus der das Abblendlicht kommt, die größere :st. Dementsprechend ist auch bei eingeschaltetem Abblendlicht der aus dieser Hälfte stammende Lichtstrom der größere.This measure gives the reflector two unequal halves, of which the upper half, i.e. the one from which the low beam comes, is the larger : st. Accordingly, the one from this half is also when the low beam is switched on originating luminous flux the greater.
Es sind zwar Kraftfahrzeugscheinwerfer mit unsymmetrischen Reflektoren bekanntgeworden, jedoch treten bei diesen zugleich parallele und geneigte Strahlen aus. Für ein Abblendlicht mit exakter Hell-Dunkel-Grenze sind derart ausgebildete Scheinwerfer nicht verwendbar.It is true that there are motor vehicle headlights with asymmetrical reflectors became known, but with these parallel and inclined rays appear at the same time the end. These are designed for a low beam with an exact cut-off line Headlights cannot be used.
Zur Herstellung der Scheinwerfer gemäß der Erfindung werden Reflektoren mit hoher optischer Genauigkeit benötigt, um die gewünschte Verbesserung zu erzielen. Aus diesem Grunde wird weiterhin vorgeschlagen, diese Reflektoren aus Kunststoff herzustellen, da gepreßte bzw. gespritzte Reflektoren eine höhere Formtreue aufweisen als solche aus Metall.To manufacture the headlights according to the invention, reflectors are used with high optical accuracy needed to achieve the desired improvement. For this reason, it is also proposed that these reflectors be made of plastic to produce, since pressed or injection-molded reflectors have a higher dimensional accuracy as such made of metal.
Die Zeichnung veranschaulicht ein Ausführungsbeispiel der Erfindung, und zwar stellt Abb. 1 einen Scheinwerfer im Schnitt dar, während Abb. 2 und 3 in schematischer Weise die Entstehung eines Reflektors gemäß der Erfindung veranschaulichen.The drawing illustrates an embodiment of the invention, namely, Fig. 1 shows a headlight in section, while Figs. 2 and 3 in schematically illustrate the creation of a reflector according to the invention.
Der Reflektor 1 des Scheinwerfers besteht erfindungsgemäß aus zwei ungleichen Hälften, von denen die obere Hälfte 2 größer ist als die untere Hälfte 3. Im Scheitelpunkt S2 dieses Reflektors ist in der Reflektoröffnung 4 die Lichtquelle 6 angeordnet, und zwar derart, daß sie um das Maß a aus der Scheinwerferachse b nach unten verschoben ist bis zur neuen Reflektorachse c. Wie sich aus den Abbildungen ergibt, ist der neue Reflektor in sich verschoben und benötigt daher zur Ergänzung des fehlenden Teiles die Ausgleichfläche 8, mit deren Hilfe in bekannter Weise die Reflektoröffnung durch die Abdeckscheibe7, die gegebenenfalls Ablenkmittel aufweisen kann, verschlossen wird. In Abb.3 ist die Verschiebung besonders deutlich zu ersehen.The reflector 1 of the headlight consists according to the invention of two unequal halves, of which the upper half 2 is larger than the lower half 3. In the vertex S2 of this reflector, the light source 6 is arranged in the reflector opening 4, in such a way that it is by the measure a is shifted from the headlight axis b down to the new reflector axis c. As can be seen from the figures, the new reflector is shifted in itself and therefore requires the compensation surface 8 to supplement the missing part, with the aid of which the reflector opening is closed in a known manner by the cover plate 7, which can optionally have deflection means. The shift can be seen particularly clearly in Figure 3.
Der Scheinwerfer üblicher Bauart mit dem Scheitelpunkt S1 und dem Brennpunkt F1 wird derart verschoben, daß sich der neue Scheitelpunkt S2 mit dem neuen Brennpunkt F2 bildet.The headlight of the usual design with the apex S1 and the Focal point F1 is shifted so that the new vertex S2 coincides with the forms new focal point F2.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW18022A DE1037983B (en) | 1955-12-09 | 1955-12-09 | Motor vehicle headlights with two-filament lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEW18022A DE1037983B (en) | 1955-12-09 | 1955-12-09 | Motor vehicle headlights with two-filament lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1037983B true DE1037983B (en) | 1958-09-04 |
Family
ID=7596148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW18022A Pending DE1037983B (en) | 1955-12-09 | 1955-12-09 | Motor vehicle headlights with two-filament lamps |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1037983B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0213348A2 (en) * | 1985-08-31 | 1987-03-11 | Robert Bosch Gmbh | Dipped light headlamp or fog lamp for motor vehicles |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB111546A (en) * | 1916-12-06 | 1917-12-06 | Adelbert Ames | Improvements in or relating to Reflecting Apparatus. |
| DE615274C (en) * | 1933-12-07 | 1935-07-01 | Herm Riemann Fa | Headlights with parabolic reflector for vehicles |
| DE720816C (en) * | 1936-08-14 | 1942-05-16 | Audi Nsu Auto Union Ag | Electric headlights, in particular for motor vehicles, with a transparent pane pressed from synthetic resin |
-
1955
- 1955-12-09 DE DEW18022A patent/DE1037983B/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB111546A (en) * | 1916-12-06 | 1917-12-06 | Adelbert Ames | Improvements in or relating to Reflecting Apparatus. |
| DE615274C (en) * | 1933-12-07 | 1935-07-01 | Herm Riemann Fa | Headlights with parabolic reflector for vehicles |
| DE720816C (en) * | 1936-08-14 | 1942-05-16 | Audi Nsu Auto Union Ag | Electric headlights, in particular for motor vehicles, with a transparent pane pressed from synthetic resin |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0213348A2 (en) * | 1985-08-31 | 1987-03-11 | Robert Bosch Gmbh | Dipped light headlamp or fog lamp for motor vehicles |
| EP0213348A3 (en) * | 1985-08-31 | 1990-02-07 | Robert Bosch Gmbh | Dipped light headlamp or fog lamp for motor vehicles |
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