DE2637211C2 - Combined headlight for automobiles - Google Patents

Combined headlight for automobiles

Info

Publication number
DE2637211C2
DE2637211C2 DE2637211A DE2637211A DE2637211C2 DE 2637211 C2 DE2637211 C2 DE 2637211C2 DE 2637211 A DE2637211 A DE 2637211A DE 2637211 A DE2637211 A DE 2637211A DE 2637211 C2 DE2637211 C2 DE 2637211C2
Authority
DE
Germany
Prior art keywords
headlight
filament
light
reflector
motor vehicles
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.)
Expired
Application number
DE2637211A
Other languages
German (de)
Other versions
DE2637211A1 (en
Inventor
Georg Ing.(Grad.) 7141 Schwieberdingen Henke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE2637211A priority Critical patent/DE2637211C2/en
Priority to FR7722300A priority patent/FR2362336A1/en
Publication of DE2637211A1 publication Critical patent/DE2637211A1/en
Application granted granted Critical
Publication of DE2637211C2 publication Critical patent/DE2637211C2/en
Expired legal-status Critical Current

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
    • F21S41/10—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
    • 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
    • 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
    • F21S41/20—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
    • 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
    • F21S41/321—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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof
    • 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
    • F21W2102/30—Fog lights

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Description

Im Lampenkolben 15 der Glühlampen-13 ist eine erste Glühwendel 16 annähernd vor dem Brennpunkt des Reflektors 11 angeordnet, welche von einer nach oben offenen Kappe 17 umgeben ist Eine zweite Glühwendel 18 ist im Brennpunkt des Reflektors 11 angeordnetIn the lamp bulb 15 of the incandescent lamp 13, a first incandescent filament 16 is approximately in front of the focal point of the Reflector 11 arranged, which from one to the top The open cap 17 is surrounded. A second incandescent filament 18 is arranged at the focal point of the reflector 11

Die in F i g. 2 für das asymmetrische Abblendlicht bestimmte Kappe 17 hat einen Kappenwinkel von 165 Grad und bildet bei bestimmungsgemäßen Gebrauch den um 15 Grad ansteigenden Ast des Abblendlichtbündels. Wird die erste Glühwendel i6 dieser Glühlampe 13 jedoch in erfindungsgemäßer Weise zur Erzeugung des Nebellichtes verwendet, so ist die Glühlampe 13 und mithin die damit festverbundene Kappe 17 gemäß Fig.2 in eine zur Yertikv,!ebene 19 symmetrische Lage zu drehen, wobei diese Ebene die optische Achse 20 einschließt Die Drehung erfolgt um 7β Grad, wodurch zwei, die sogenannte Hell-Dunkel-Grenze des Abblendlichtbündels erzeugenden Ränder 21 der Kappe 17 auf einer horizontalen Ebene 22 zu liegen kommen. The in F i g. 2 cap 17 intended for the asymmetrical low beam has a cap angle of 165 degrees and, when used as intended, forms the branch of the low beam which increases by 15 degrees. However, if the first filament 16 of this incandescent lamp 13 is used in the manner according to the invention to generate the fog light, the incandescent lamp 13 and thus the cap 17 firmly connected to it must be rotated according to FIG the optical axis 20 includes The rotation takes place by 7 β degrees, whereby two edges 21 of the cap 17, which produce the so-called light-dark boundary of the low beam, come to lie on a horizontal plane 22.

In der zweiten Ausführung nach F i g. 3 ist die Kappe 27 der Glühlampe von vornherein gegenüber der Vertikalebene 19 symmetrisch angeordnet, so daß die beiden Ränder 21 der Kappen ebenfalls auf der horizontalen Ebene 22 zu liegen kommen und einen Kappenwinkel von mindestens 180 Grad einschließen.In the second embodiment according to FIG. 3 is the cap 27 of the incandescent lamp from the start with respect to the vertical plane 19 arranged symmetrically so that the two edges 21 of the caps are also on the horizontal Level 22 come to rest and include a cap angle of at least 180 degrees.

Die in F i g. 1 dargestellte Streuscheibe 12 hat in der oberen Hälfte optisch wirksame Mittel 23 — beispielsweise senkrecht stehende Prismen oder Linsen — zum Reflektorinneren, welche nach außen hindurchtretende Lichtstrahlen horizontal streuen; in der unteren Hälfte der Streuscheibe 12 sind ebenfalls optisch wirksame Mittel 24 angeordnet, die jedoch nach außen hindurchtretende Lichtstrahlen bündeln.The in F i g. 1 has optically effective means 23 in the upper half - for example perpendicular prisms or lenses - to the inside of the reflector, which penetrate to the outside Scatter light rays horizontally; in the lower half of the lens 12 are also optically effective Means 24 are arranged, but which focus outwardly passing light rays.

Eine weitere Möglichkeit, eine waagerechte Helldunkelgrenze mit einer herkömmlichen Zweifadenlampe für das asymmetrische Abblendlicht zu bilden zeigt F i g. 4. Hier hat die Kappe 17 wieder den um 15 Grad abgeschrägten Kappenrand 21 und den den horizontalen Ast dieser Grenze bildenden Rand 21. Beide den Schirm 14 am Reflektor haltenden Stege 28 liegen mit ihren oberen Kanten auf der horizontalen Ebene 22, wodurch eine ebensolche Helldunkelgrenze gebildetAnother possibility, a horizontal light-dark border with a conventional two-filament lamp to form for the asymmetrical low beam is shown in FIG. 4. Here the cap 17 is again at 15 degrees beveled cap edge 21 and the edge 21 forming the horizontal branch of this border. Both the The upper edges of the webs 28 holding the screen 14 on the reflector lie on the horizontal plane 22, whereby a similar light-dark boundary is formed

Der erfindungsgemäße Scheinwerfer für Kraftfahrzeuge bildet die beiden Lichtbündel wie folgt:The headlight according to the invention for motor vehicles forms the two light bundles as follows:

Ist die erste Glühwendel 16 eingeschaltet, so werden die nach unten gerichteten Strahlen von der Kappe 17 abgeschirmt, und die nach oben ausgesendeten Strahlen 25 werden aufgrund der Entfokussierung der Glühwendel vom Reflektor 11 nach unten reflektiert und beim Hindurchtrete- durch die obere Hälfte der Streuscheibe 12 von deren optischen Mitteln 23 fächerartig gebrochen, so daß ein breites Nebellichtband den Fahrbahnbereich vor dem Fahrzeug ausleuchtet Wird hingegen die zweite, im Brennpunkt des Reflektors 11 angeordnete Glühwendel 18 eingescnaltet, so werden Strahlen 26 ausgesendet die im wesentlichen parallel zur optischen Achse 20 reflektiert werde« und beim Hindurchtreten durch die untere Hälfte der Streuscheibe 12 von deren optisch wirksamen Mitteln 24 gebündelt Das Nebellicht und das Fernlicht ist nur wechselweise schaltbar.If the first incandescent filament 16 is switched on, then the downward rays are shielded by the cap 17, and the rays emitted upward 25 are reflected downwards by the reflector 11 due to the defocusing of the incandescent filament and at Pass through the upper half of the lens 12, broken in a fan-like manner by the optical means 23 thereof, so that a wide fog light band, however, illuminates the lane area in front of the vehicle When the second incandescent filament 18 arranged at the focal point of the reflector 11 is switched on, rays 26 are generated emitted which is reflected essentially parallel to the optical axis 20 "and when passing through bundled by the lower half of the lens 12 by its optically effective means 24 The fog light and the high beam can only be switched alternately.

2020th

Hierzu 1 Biati ZeichnungenIn addition 1 Biati drawings

2525th

3030th

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Claims (4)

Patentansprüche: ZeichnungClaims: drawing 1. Kombinierter Scheinwerfer für Kraftfahrzeuge mit einem Reflektor, einer Streuscheibe und einer Zweifadenglühlampe, deren im Brennpunkt des Reflektors angeordnete Glühwendel das Fernlicht erzeugt und deren außerhalb des Brennpunktes angeordnete und mit einer asymmetrischen Kappe versehene Glühwendel das Nebellicht erzeugt, dadurch gekennzeichnet, daß die Zweifadenglühlampe (13) annähernd um 7,5 Grad bezüglich der optischen Achse (20) des Reflektors (11) in diesem derart gedreht eingesetzt ist, daß die die Helldunkelgrenze des Nebellichtes bildenden Ränder (21) der Kappe (17) in einer horizontalen Ebene (22) liegen.1. Combined headlight for motor vehicles with a reflector, a lens and a Two-filament incandescent lamp, the filament of which is arranged in the focal point of the reflector and generates the high beam and their out of focus and asymmetrically capped Incandescent filament generates the fog light, characterized in that the two-filament incandescent lamp (13) approximately by 7.5 degrees with respect to the optical axis (20) of the reflector (11) in this is inserted rotated in such a way that the edges forming the light-dark boundary of the fog light (21) of the cap (17) lie in a horizontal plane (22). 2. Scheinwerfer nach Anspruch 1, dadurch gekennzeichne«, daß in der oberen Hälfte der Streuscheibe (13Ö optische Mittels (23) zur Erzeugung eines breiten Nebellichtes und in der unteren Hälfte optische Mittel (24) zur Erzeugung eines weitreichenden Fernlichtes angeordnet sind.2. Headlight according to claim 1, characterized marked «, that in the upper half of the lens (13Ö optical means (23) for generating a wide fog light and in the lower half optical means (24) for generating a far-reaching High beam are arranged. 3. Scheinwerfer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Scheinwerfer (10) als an das Kraftfahrzeug anbaubarer Zuiatzscheinwerfer ausgebildet ist3. Headlight according to claim 1 or 2, characterized in that the headlight (10) than to the Motor vehicle attachable additional headlights is designed 4. Scheinwerfer nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Scheinwerfer (10) als Einbauscheinwerfer ausgebildet ist, der Teil eines Hauptscheinwerfers ist.4. Headlight according to claim 1 or 2, characterized in that the headlight (10) as a built-in headlight is formed, which is part of a main headlight. 1010 1515th 2020th 2525th 3030th Stand der TechnikState of the art Die Erfindung geht aus von einem kombinierten Scheinwerfer für Kraftfahrzeuge nach der Gattung des Anspruchs 1. Ein derartiger Scheinwerfer ist aus der DE-OS 15 80 276 bekannt, der jedoch nicht die Zulassungsbedingungen im Straßenverkehr erfüllt, die voiu jeweiligen nationalen Kraftfahrzeugtechnischen Bundesamt festgelegt werden, weil das Nebellicht zum einen zusätzlich zum Abblendlicht nur eingeschaltet sein darf und zum anderen bezüglich der Vertikalen symmetrisch sein muß, d. h. die äußeren Kanten der Helldunkelgrenze des Abblendlichtbündels müssen auf einer Horizontalen liegen.The invention is based on a combined headlight for motor vehicles of the genus Claim 1. Such a headlight is known from DE-OS 15 80 276, which does not, however, meet the approval requirements in road traffic met the voiu respective national Federal Motor Vehicle Technology Office because the fog lights can only be switched on in addition to the low beam may and on the other hand must be symmetrical with respect to the vertical, d. H. the outer edges of the light-dark border of the low beam must lie on a horizontal line. Ein derartiger Scheinwerfer ist auch aus »KRAFTHAND«, 49. Jahrgavig, Heft 1,15. Januar 1976, bekannt, der die Funktion eines Zusatz-Fernscheinwerfers und eines Nebelscheinwerfers in sich vereinigt. Dieser Scheinwerfer hat zwei Reflektoren und zwei Einfaden-Hafogenlampen. Da beide Reflektoren in einem gemeinsamen Gehäuse angeordnet sind, weist dieses eine große, unproportionale Bauform auf.Such a spotlight is also from "KRAFTHAND", 49th year gavig, issue 1.15. January 1976, known which combines the function of an additional high-beam headlight and a fog light. This Headlamp has two reflectors and two single-filament Hafogen lamps. Since both reflectors are arranged in a common housing, this has one large, disproportionate design. Vorteile der ErfindungAdvantages of the invention Mit der Erfindung wird ein kombinierter Scheinwerfer für Kraftfahrzeuge geschaffen, der die vom jeweiligen nationalen Kraftfahrzeugtechnischen Bundesamt festgelegten Zulassungsbedingungen im Straßenverkehr erfüllt und außerdem eine ansprechende Bauform aufweist.With the invention, a combined headlight for motor vehicles is created, which by the respective road traffic licensing conditions laid down by the national Federal Motor Vehicle Technology Office fulfilled and also has an attractive design. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransorüchen beschrieben.Advantageous developments of the invention are described in the sub-claims. 3535 4040 4545 5050 5555 6060 65 Drei Ausführungsbeispiele sind in der Zeichnung dargestellt und werden in folgender Beschreibung näher erläutert Es zeigt 65 Three exemplary embodiments are shown in the drawing and are explained in more detail in the following description Fig. 1 einen Scheinwerfer für Kraftfahrzeuge für wechselweise schaltbares Fern- oder Nebellicht in Vertikalschnitt und verkleinerter Darstellung, jedoch ohne Gehäuse; .Fig. 1 a headlight for motor vehicles for alternately switchable high beam or fog light in vertical section and reduced representation, but without Casing; . Fig.2 eine erste Ausführung einer Kappe in Querschnitt und vergrößerter Darstellung, jedoch ohne Nebellicht-Glühwendel; 2 shows a first embodiment of a cap in cross section and enlarged view, but without fog light filament; F i g. 3 eine zweite Ausführung der Kappe in gleicher Darstellungsweise; undF i g. 3 shows a second version of the cap in the same way Mode of representation; and Fig.4 eine teilweise geschnittene Frontansicht nur des Schirmes in Pfeilrichtung 30 in F i g. 1-Fig. 4 is a partially sectioned front view only of the screen in the direction of arrow 30 in FIG. 1- Der Scheinwerfer 10 für Kraftfahrzeuge besteht im wesentlichen aus einem paraboloidcn Reflektor 11. einer davor gesetzten lichtdurchlässigen Streuscheibe 12 und einer im Scheitelbereich einsetzbaren Zweifaden-Halogengiühiampe i3.The headlight 10 for motor vehicles consists essentially of a paraboloidal reflector 11 light-permeable diffuser 12 placed in front of it and a two-filament halogen lamp that can be used in the apex area i3. Ein Schirm 14 ist an zwei Stegen 28 in nichtgezeichneter Weise am Reflektor 11 befestigt und verhindert das Austreten nicht reflektierter Strahlen aus dem Scheinwerfer 10.A screen 14 is attached to two webs 28 in a manner not shown on the reflector 11 and prevents this Exit of non-reflected rays from the headlight 10.
DE2637211A 1976-08-18 1976-08-18 Combined headlight for automobiles Expired DE2637211C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2637211A DE2637211C2 (en) 1976-08-18 1976-08-18 Combined headlight for automobiles
FR7722300A FR2362336A1 (en) 1976-08-18 1977-07-20 Car headlamp with main beam filament at reflector focus - has cup beneath fog lamp filament and screen mounted in front of bulb by brackets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2637211A DE2637211C2 (en) 1976-08-18 1976-08-18 Combined headlight for automobiles

Publications (2)

Publication Number Publication Date
DE2637211A1 DE2637211A1 (en) 1978-02-23
DE2637211C2 true DE2637211C2 (en) 1985-09-05

Family

ID=5985759

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2637211A Expired DE2637211C2 (en) 1976-08-18 1976-08-18 Combined headlight for automobiles

Country Status (2)

Country Link
DE (1) DE2637211C2 (en)
FR (1) FR2362336A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19640941A1 (en) * 1996-10-04 1998-04-16 Teves Gmbh Alfred Circuit arrangement for motor vehicle fog- and head-lamp vehicle
US5954428A (en) * 1996-09-26 1999-09-21 Hella Kg Hueck & Co. Vehicle headlight

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523267A1 (en) * 1982-03-15 1983-09-16 Laribe Armand IMPROVEMENTS ON LUMINOUS SPOTLIGHTS FOR MOTOR VEHICLES, ESPECIALLY AUTOMOTIVE
DE3533117A1 (en) * 1985-09-17 1987-03-26 Bosch Gmbh Robert Headlight for the common fog light and main beam of motor vehicles
FR2694373B1 (en) * 1992-07-30 1994-11-04 Valeo Vision Motor vehicle headlamp comprising a lamp with two filaments for selectively generating a fog beam and a driving beam.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1580276A1 (en) * 1966-05-20 1971-03-25 Edwin Liebig Fog light device for car headlights

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5954428A (en) * 1996-09-26 1999-09-21 Hella Kg Hueck & Co. Vehicle headlight
DE19640941A1 (en) * 1996-10-04 1998-04-16 Teves Gmbh Alfred Circuit arrangement for motor vehicle fog- and head-lamp vehicle

Also Published As

Publication number Publication date
DE2637211A1 (en) 1978-02-23
FR2362336A1 (en) 1978-03-17
FR2362336B3 (en) 1980-04-18

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