EP0746723A1 - Reflector for vehicle headlamps - Google Patents

Reflector for vehicle headlamps

Info

Publication number
EP0746723A1
EP0746723A1 EP95934617A EP95934617A EP0746723A1 EP 0746723 A1 EP0746723 A1 EP 0746723A1 EP 95934617 A EP95934617 A EP 95934617A EP 95934617 A EP95934617 A EP 95934617A EP 0746723 A1 EP0746723 A1 EP 0746723A1
Authority
EP
European Patent Office
Prior art keywords
filler
base body
reflector
reflector according
reflective coating
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.)
Withdrawn
Application number
EP95934617A
Other languages
German (de)
French (fr)
Inventor
Ekkehard Koch
Jörg Digel
Harry Rieger
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
Publication of EP0746723A1 publication Critical patent/EP0746723A1/en
Withdrawn legal-status Critical Current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
    • F21S41/30—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
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings

Definitions

  • the invention relates to a reflector for headlights for vehicles according to the preamble of claim 1.
  • Such a reflector is known from EP 0 184 554 AI.
  • This reflector has a base body which consists of a base body made of plastic mixed with finely divided filler and a reflective coating applied directly to this base body.
  • Plastic is used here as a thermoplastic, which makes it possible to produce the base body with a surface quality such that the reflective coating can be applied to it directly without the interposition of an additional lacquer layer.
  • thermoplastic plastics generally have a low heat resistance, so that it cannot be ruled out that a reflector with a base body made of thermoplastic material is deformed by the heat generated during operation of the light source of the headlight. This can lead to the fact that for the existing light regulations no longer be complied with.
  • the choice of material for the base body must be made suitable.
  • the reflector according to the invention with the features of claim 1 has the advantage that it has good heat resistance due to the base body made of thermosetting plastic and the difficulties explained above are avoided.
  • the filler with a pH value between 6 and 8 ensures good resistance of the reflective coating.
  • a reflector for a headlight for vehicles, in particular motor vehicles, shown in the figure, consists of a base body 10, which is produced by injection molding or injection molding and subsequently on its concavely curved inner surface 12 directly without intermediate If an additional layer of lacquer were to be applied, a reflective coating 14 would be applied.
  • the base body 10 of the reflector consists of a duroplastic, to which finely divided filler and, if appropriate, further additives are admixed.
  • the filler has a pH between 6 and 8, preferably between 6.5 and 7.5, in particular about 7, and is therefore chemically neutral.
  • the filler has an average particle size of at most 1 ⁇ m and is distributed as evenly as possible in the mass from which the base body 10 is made, before processing and in the finished base body 10.
  • the filler is contained in a mass of at least 40% in the mass from which the base body is manufactured.
  • the filler is preferably contained in the mass with a weight fraction between 50% and 70%.
  • a mixture of different fillers can also be used, in which case the fillers together have the weight proportions of the mass indicated above.
  • an unsaturated polyester material such as polyester resin
  • the unsaturated polyester resin can be mixed with an addition of low-profile additive, for example in a composition with 70% polyester resin and 30% low-profile additive.
  • the proportion of the low-profile additive can be reduced to 0.
  • a recipe for the mass from which the base body 10 is produced is given below; for the constituents of the mass, the proportions by weight of the total mass are given: Polyester resin approx. 20 to 30%
  • the glass fibers serve to achieve a sufficient mechanical stability of the base body 10.
  • the additives serve, for example, among other things to achieve good processability of the mass.
  • the mass is in a doughy form and is also referred to as a BMC mass, bulk molding compound.
  • epoxy resin is used as the thermosetting plastic, which is present in the form of a free-flowing granulate before processing.
  • a recipe for the mass from which the base body 10 is produced is given below; for the constituents of the mass, the proportions by weight of the total mass are given:
  • the composition composed as in the above-mentioned exemplary embodiments is mixed and homogenized uniformly before being processed, for example in a roller mill.
  • the mass is then shaped into the base body 10 by injection molding or transfer molding in a corresponding tool or mold.
  • the tool or the Form has, at least in the region of the concavely curved inner surface 12 of the base body 10, to which the reflective coating 14 is later applied, a small surface roughness, which is preferably at most 0.2 ⁇ m.
  • the base body 10 is cured in a known manner in the tool by heating.
  • the inner surface 12 of the base body 10 is then cleaned, for example by blowing off or washing.
  • the special features explained above that is to say that the average particle size of the filler is at most 1 ⁇ m and that the tool has a low surface roughness, enables the production of the base body 10 with a very low surface roughness on its inner surface 12.
  • the surface roughness of the inner surface Surface 12 of the base body 10 is at most 0.3 ⁇ m, preferably at most 0.15 ⁇ m. This high surface quality of the base body 10 enables it to be applied directly to its inner surface 12 without the application of an additional one
  • Lacquer layer the reflective coating 14 can be applied.
  • the reflective coating 14 is applied to the inner surface 12 of the base body 10 in a known manner.
  • the reflective coating 14 is preferably made of aluminum and has a reflectance of at least 90%. Due to the chemical neutrality of the filler, good resistance of the reflective coating 14 is achieved even under the influence of moisture.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)

Abstract

The reflector has a basic body (10) consisting of a duroplastic cynthetic material mixed with a finely divided filler and possibly other additives and on which a reflective coating (14) is directly applied to a concave curved surface (12). The filler is chemically neutral and has a pH of about 7. The proportion of filler in the compound constituting the basic body (10) is at least 40 %. The filler has an average particle size of 1νm at the most. The surface (12) of the basic body (10) to be coated is of high quality so that the reflective coating (14) may be applied directly to it, while the coating (14) is given good durability by the chemical neutrality of the filler.

Description

Reflektor für Scheinwerfer für Fahrzeuge Reflector for headlights for vehicles
Stand der TechnikState of the art
Die Erfindung geht aus von einem Reflektor für Scheinwerfer für Fahrzeuge nach der Gattung des Anspruchs 1.The invention relates to a reflector for headlights for vehicles according to the preamble of claim 1.
Ein solcher Reflektor ist durch die EP 0 184 554 AI bekannt. Dieser Reflektor weist einen Grundkörper auf, der aus einem aus mit feinteiligem Füllstoff gemischten Kunststoff herge¬ stellten Grundkörper und einer auf diesen Grundkörper direkt aufgebrachten reflektierenden Beschichtung besteht. AlsSuch a reflector is known from EP 0 184 554 AI. This reflector has a base body which consists of a base body made of plastic mixed with finely divided filler and a reflective coating applied directly to this base body. As
Kunststoff wird dabei ein thermoplastischer Kunststoff ver¬ wendet, der es ermöglicht, den Grundkörper mit einer solchen Oberflächenqualität herzustellen, daß auf diesen direkt ohne Zwischenlage einer zusätzlichen Lackschicht die reflektie- rende Beschichtung aufgebracht werden kann. Thermoplas ische Kunststoffe weisen jedoch in der Regel eine geringe Wärme¬ formbeständigkeit auf, so daß nicht ausgeschlossen werden kann, daß sich ein Reflektor mit aus thermoplastischem Kunststoff hergestelltem Grundkörper durch die während des Betriebs der Lichtquelle des Scheinwerfers entstehende Wärme verformt. Dies kann dazu führen, daß für die vom Scheinwer- fer zu erzeugende Lichtverteilung bestehende gesetzliche Vorschriften nicht mehr eingehalten werden. Um eine gute Be¬ ständigkeit der reflektierenden Beschichtung zu erzielen, muß die Materialauswahl für den Grundkörper geeignet getrof- fen werden.Plastic is used here as a thermoplastic, which makes it possible to produce the base body with a surface quality such that the reflective coating can be applied to it directly without the interposition of an additional lacquer layer. However, thermoplastic plastics generally have a low heat resistance, so that it cannot be ruled out that a reflector with a base body made of thermoplastic material is deformed by the heat generated during operation of the light source of the headlight. This can lead to the fact that for the existing light regulations no longer be complied with. In order to achieve good resistance of the reflective coating, the choice of material for the base body must be made suitable.
Vorteile der ErfindungAdvantages of the invention
Der erfindungsgemäße Reflektor mit den Merkmalen des An- spruchs 1 hat demgegenüber den Vorteil, daß dieser wegen des aus duroplastischem Kunststoff bestehenden Grundkörpers eine gute Wäremformbeständigkeit aufweist und die vorstehend er¬ läuterten Schwierigkeiten vermieden sind. Außerdem ist durch den Füllstoff mit einem pH-Wert zwischen 6 und 8 eine gute Beständigkeit der reflektierenden Beschichtung sicherge¬ stellt.The reflector according to the invention with the features of claim 1 has the advantage that it has good heat resistance due to the base body made of thermosetting plastic and the difficulties explained above are avoided. In addition, the filler with a pH value between 6 and 8 ensures good resistance of the reflective coating.
In den abhängigen Ansprüchen sind vorteilhafte Ausgestaltun¬ gen und Weiterbildungen der Erfindung angegeben.Advantageous refinements and developments of the invention are specified in the dependent claims.
Zeichnungdrawing
Zwei Ausführungsbeispiele der Erfindung sind in der Zeich¬ nung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die einzige Figur zeigt einen Reflektor in einem Längsschnitt.Two exemplary embodiments of the invention are shown in the drawing and are explained in more detail in the description below. The only figure shows a reflector in a longitudinal section.
Beschreibung der AusführungsbeispieleDescription of the embodiments
Ein in der Figur dargestellter Reflektor für einen Schein¬ werfer für Fahrzeuge, insbesondere Kraftfahrzeuge, besteht aus einem Grundkörper 10, welcher durch Spritzgießen oder Spritzpressen hergestellt ist und auf dessen konkav gewölb¬ ter inneren Oberfläche 12 nachfolgend direkt ohne Zwischen- läge einer zusätzlichen Lackschicht eine reflektierende Be¬ schichtung 14 aufgebracht ist.A reflector for a headlight for vehicles, in particular motor vehicles, shown in the figure, consists of a base body 10, which is produced by injection molding or injection molding and subsequently on its concavely curved inner surface 12 directly without intermediate If an additional layer of lacquer were to be applied, a reflective coating 14 would be applied.
Der Grundkörper 10 des Reflektors besteht aus einem duropla- stischen Kunststoff, dem feinteiliger Füllstoff und gegebe¬ nenfalls weitere Zusatzstoffe beigemischt sind. Der Füll¬ stoff weist einen pH-Wert zwischen 6 und 8, vorzugsweise zwischen 6,5 und 7,5, insbesondere von etwa 7 auf, ist also chemisch neutral. Der Füllstoff weist eine mittlere Teil- chengröße von höchstens 1 μm auf und ist in der Masse, aus der der Grundkörper 10 hergestellt wird, vor der Verarbei¬ tung und im fertigen Grundkörper 10 möglichst gleichmäßig verteil .The base body 10 of the reflector consists of a duroplastic, to which finely divided filler and, if appropriate, further additives are admixed. The filler has a pH between 6 and 8, preferably between 6.5 and 7.5, in particular about 7, and is therefore chemically neutral. The filler has an average particle size of at most 1 μm and is distributed as evenly as possible in the mass from which the base body 10 is made, before processing and in the finished base body 10.
Der Füllstoff ist mit einem Gewichtsanteil von mindestens 40 % in der Masse enthalten, aus der der Grundkörper herge¬ stellt wird. Der Füllstoff ist vorzugsweise mit einem Ge¬ wichtsanteil zwischen 50 % und 70 % in der Masse enthalten. Es kann auch eine Mischung aus verschiedenen Füllstoffen verwendet werden, wobei dann die Füllstoffe zusammen die vorstehend angegebenen Gewichtsanteile an der Masse aufwei¬ sen.The filler is contained in a mass of at least 40% in the mass from which the base body is manufactured. The filler is preferably contained in the mass with a weight fraction between 50% and 70%. A mixture of different fillers can also be used, in which case the fillers together have the weight proportions of the mass indicated above.
Bei einem ersten Ausführungsbeispiel wird als duroplasti- scher Kunststoff eine ungesättigte Polyestermasse, wie Poly¬ esterharz, verwendet. Das ungesättigte Polyesterharz kann mit einem Zusatz von Low-Profile-Additiv gemischt sein, bei¬ spielsweise in einer Zusammensetzung mit 70 % Polyesterharz und 30 % Low-Profile-Additiv. Der Anteil des Low-Profile-Ad- ditivs kann bis auf 0 reduziert werden.In a first embodiment, an unsaturated polyester material, such as polyester resin, is used as the thermosetting plastic. The unsaturated polyester resin can be mixed with an addition of low-profile additive, for example in a composition with 70% polyester resin and 30% low-profile additive. The proportion of the low-profile additive can be reduced to 0.
Nachfolgend wird eine Rezeptur für die Masse angegeben, aus der der Grundkörper 10 hergestellt wird; für die Bestand¬ teile der Masse sind dabei deren Gewichtsanteile an der ge- samten Masse angegeben: Polyesterharz ca. 20 bis 30 %A recipe for the mass from which the base body 10 is produced is given below; for the constituents of the mass, the proportions by weight of the total mass are given: Polyester resin approx. 20 to 30%
(ggf. mit Low-Profile-Additiv)(possibly with low-profile additive)
Füllstoff mindestens 40 %Filler at least 40%
Glasfasern ca. 5 bis 20 %Glass fibers approx. 5 to 20%
Eindickmittel ca. 0 bis 1 %Thickener approx. 0 to 1%
Zusatzstoffe ca. 1 bis 5 %Additives approx. 1 to 5%
Die Glasfasern dienen zur Erzielung einer ausreichenden me¬ chanischen Stabilität des Grundkörpers 10. Die Zusatzstoffe dienen beispielsweise unter anderem dazu, eine gute Verar- beitbarkeit der Masse zu erzielen. Die Masse liegt beim er¬ sten Ausführungsbeispiel in einer teigigen Form vor und wird auch als BMC-Masse, Bulk Moulding Compound, bezeichnet.The glass fibers serve to achieve a sufficient mechanical stability of the base body 10. The additives serve, for example, among other things to achieve good processability of the mass. In the first exemplary embodiment, the mass is in a doughy form and is also referred to as a BMC mass, bulk molding compound.
Bei einem zweiten Ausführungsbeispiel wird als duroplasti¬ scher Kunststoff Epoxid-Harz verwendet, das vor der Verar¬ beitung in Form eines rieselfähigen Granulats vorliegt. Nachfolgend wird eine Rezeptur für die Masse angegeben, aus der der Grundkörper 10 hergestellt wird; für die Bestand¬ teile der Masse sind dabei deren Gewichtsanteile an der ge¬ samten Masse angegeben:In a second exemplary embodiment, epoxy resin is used as the thermosetting plastic, which is present in the form of a free-flowing granulate before processing. A recipe for the mass from which the base body 10 is produced is given below; for the constituents of the mass, the proportions by weight of the total mass are given:
Epoxid-Harz ca. 30 bis 50 % Füllstoff mindestens 40 % Glasfasern ca. 0 bis 5 % Zusatzstoffe ca. 1 bis 5 %Epoxy resin approx. 30 to 50% filler at least 40% glass fibers approx. 0 to 5% additives approx. 1 to 5%
Die wie bei den vorstehend angegebenen Ausführungsbeispielen zusammengesetzte Masse wird vor ihrer Verarbeitung gleichmä¬ ßig gemischt und homogenisiert, beispielsweise in einem Wal¬ zenstuhl. Die Masse wird anschließend durch Spritzgießen oder Spritzpressen in einem entsprechenden Werkzeug bzw. ei¬ ner Form zum Grundkörper 10 geformt. Das Werkzeug bzw. die Form weist zumindest im Bereich der konkav gekrümmten Innen¬ fläche 12 des Grundkörpers 10, auf die später die reflektie¬ rende Beschichtung 14 aufgebracht wird, eine geringe Ober- flächenrauhtiefe auf, die vorzugsweise höchstens 0,2 μm be- trägt. Der Grundkörper 10 wird nach dessen Formung im Werk¬ zeug in bekannter Weise in diesem durch Erwärmung ausgehär¬ tet.The composition composed as in the above-mentioned exemplary embodiments is mixed and homogenized uniformly before being processed, for example in a roller mill. The mass is then shaped into the base body 10 by injection molding or transfer molding in a corresponding tool or mold. The tool or the Form has, at least in the region of the concavely curved inner surface 12 of the base body 10, to which the reflective coating 14 is later applied, a small surface roughness, which is preferably at most 0.2 μm. After its formation in the tool, the base body 10 is cured in a known manner in the tool by heating.
Anschließend wird die innere Oberfläche 12 des Grundkörpers 10 gereinigt, beispielsweise durch Abblasen oder Waschen. Die vorstehend erläuterten Besonderheiten, das heißt, daß die mittlere Teilchengröße des Füllstoffes höchstens 1 μm beträgt und daß das Werkzeug eine geringe Oberflächenrauh- tiefe aufweist, ermöglicht die Herstellung des Grundkörpers 10 mit einer sehr geringen Oberflächenrauhtiefe an seiner inneren Oberfläche 12. Die Oberflächenrauhtiefe der inneren Oberfläche 12 des Grundkörpers 10 beträgt höchstens 0,3 μm, vorzugsweise höchstens 0,15 μm. Diese hohe Oberflächenquali¬ tät des Grundkörpers 10 ermöglicht es, daß auf dessen innere Oberfläche 12 direkt ohne Aufbringung einer zusätzlichenThe inner surface 12 of the base body 10 is then cleaned, for example by blowing off or washing. The special features explained above, that is to say that the average particle size of the filler is at most 1 μm and that the tool has a low surface roughness, enables the production of the base body 10 with a very low surface roughness on its inner surface 12. The surface roughness of the inner surface Surface 12 of the base body 10 is at most 0.3 μm, preferably at most 0.15 μm. This high surface quality of the base body 10 enables it to be applied directly to its inner surface 12 without the application of an additional one
Lackschicht die reflektierende Beschichtung 14 aufgebracht werden kann.Lacquer layer, the reflective coating 14 can be applied.
Die reflektierende Beschichtung 14 wird in bekannter Weise auf die innere Oberfläche 12 des Grundkörpers 10 aufge¬ bracht. Die reflektierende Beschichtung 14 besteht vorzugs¬ weise aus Aluminium und weist einen Reflexionsgrad von min¬ destens 90 % auf. Durch die chemische Neutralität des Füll¬ stoffes wird eine gute Beständigkeit der reflektierenden Be- Schichtung 14 auch unter dem Einfluß von Feuchtigkeit er¬ reicht. The reflective coating 14 is applied to the inner surface 12 of the base body 10 in a known manner. The reflective coating 14 is preferably made of aluminum and has a reflectance of at least 90%. Due to the chemical neutrality of the filler, good resistance of the reflective coating 14 is achieved even under the influence of moisture.

Claims

Ansprüche Expectations
1. Reflektor für Scheinwerfer für Fahrzeuge, der einen Grundkörper (10) aus einem mit feinteiligem Füllstoff und gegebenenfalls weiteren Zusatzstoffen gemischten Kunststoff und eine direkt auf eine Oberfläche (12) des Grundkörpers (10) aufgebrachte reflektierende Beschichtung (14) aufweist, dadurch gekennzeichnet, daß der Kunststoff ein duroplasti¬ scher Kunststoff ist und daß der Füllstoff einen pH-Wert zwischen 6 und 8 aufweist.1. A reflector for headlights for vehicles, which has a base body (10) made of a plastic mixed with finely divided filler and optionally further additives and a reflective coating (14) applied directly to a surface (12) of the base body (10), characterized in that the plastic is a thermoset plastic and that the filler has a pH between 6 and 8.
2. Reflektor nach Anspruch 1, dadurch gekennzeichnet, daß der Füllstoff einen pH-Wert zwischen 6,5 und 7,5, insbeson¬ dere von etwa 7 aufweist.2. Reflector according to claim 1, characterized in that the filler has a pH between 6.5 and 7.5, in particular of about 7.
3. Reflektor nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Füllstoff einen Gewichtsanteil von mindestens 40 % an der Masse aufweist, aus der der Grundkörper (10) besteht.3. Reflector according to claim 1 or 2, characterized in that the filler has a weight fraction of at least 40% of the mass from which the base body (10) consists.
4. Reflektor nach Anspruch 3, dadurch gekennzeichnet, daß der Füllstoff einen Gewichtsanteil zwischen 50 und 70 % an der Masse aufweist, aus der der Grundkörper (10) besteht.4. A reflector according to claim 3, characterized in that the filler has a weight fraction between 50 and 70% of the mass from which the base body (10) consists.
5. Reflektor nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß der Füllstoff eine mittlere Teilchen¬ größe von höchstens 1 μm aufweist. 5. Reflector according to one of the preceding claims, characterized in that the filler has an average particle size of at most 1 micron.
6. Reflektor nach einem der vorstehenden Ansprüche, daß die Oberfläche (12) des Grundkörpers (10) , auf die die reflek¬ tierende Beschichtung (14) aufgebracht wird, eine Oberflä- chenrauhtiefe von höchstens 0,3 μm aufweist.6. Reflector according to one of the preceding claims, that the surface (12) of the base body (10) to which the reflective coating (14) is applied has a surface roughness of at most 0.3 μm.
7. Reflektor nach Anspruch 6, dadurch gekennzeichnet, daß die Oberfläche (12) des Grundkörpers (10) , auf die die re¬ flektierende Beschichtung (14) aufgebracht wird, eine Ober- flächenrauhtiefe von höchstens 0,15 μm aufweist.7. A reflector according to claim 6, characterized in that the surface (12) of the base body (10), to which the reflective coating (14) is applied, has a surface roughness of at most 0.15 μm.
8. Reflektor nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß als duroplastischer Kunststoff eine un¬ gesättigte Polyestermasse gegebenfalls unter Zusatz eines Low-Profile-Additivs verwendet wird.8. Reflector according to one of the preceding claims, characterized in that an unsaturated polyester material is optionally used as a thermosetting plastic with the addition of a low-profile additive.
9. Reflektor nach einem der Ansprüche 1 bis 7, dadurch ge¬ kennzeichnet, daß als duroplastischer Kunststoff ein Epoxid- Harz verwendet wird. 9. Reflector according to one of claims 1 to 7, characterized ge indicates that an epoxy resin is used as the thermosetting plastic.
EP95934617A 1994-11-22 1995-10-19 Reflector for vehicle headlamps Withdrawn EP0746723A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4441486A DE4441486C2 (en) 1994-11-22 1994-11-22 Headlight reflector for vehicles
DE4441486 1994-11-22
PCT/DE1995/001456 WO1996016295A1 (en) 1994-11-22 1995-10-19 Reflector for vehicle headlamps

Publications (1)

Publication Number Publication Date
EP0746723A1 true EP0746723A1 (en) 1996-12-11

Family

ID=6533822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95934617A Withdrawn EP0746723A1 (en) 1994-11-22 1995-10-19 Reflector for vehicle headlamps

Country Status (11)

Country Link
EP (1) EP0746723A1 (en)
JP (1) JPH09508235A (en)
KR (1) KR970700843A (en)
CN (1) CN1137310A (en)
BR (1) BR9506554A (en)
CZ (1) CZ202496DA3 (en)
DE (1) DE4441486C2 (en)
HU (1) HU216413B (en)
PL (1) PL178678B1 (en)
RU (1) RU2141075C1 (en)
WO (1) WO1996016295A1 (en)

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AT503559B1 (en) 2006-06-02 2007-11-15 Fronius Int Gmbh DEVICE FOR EVALUATING PICTURES OF WELDING POINTS ON A CARRIER MATERIAL

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HU216413B (en) 1999-06-28
CZ202496DA3 (en) 1997-03-12
KR970700843A (en) 1997-02-12
HU9601990D0 (en) 1996-09-30
BR9506554A (en) 1997-10-28
CN1137310A (en) 1996-12-04
DE4441486C2 (en) 1996-09-19
RU2141075C1 (en) 1999-11-10
PL178678B1 (en) 2000-06-30
HUT74799A (en) 1997-02-28
WO1996016295A1 (en) 1996-05-30
JPH09508235A (en) 1997-08-19
DE4441486A1 (en) 1996-05-23

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