DE1115202B - Process for the production of a colored reflector for vehicle headlights, in particular for fog lights - Google Patents
Process for the production of a colored reflector for vehicle headlights, in particular for fog lightsInfo
- Publication number
- DE1115202B DE1115202B DEU4480A DEU0004480A DE1115202B DE 1115202 B DE1115202 B DE 1115202B DE U4480 A DEU4480 A DE U4480A DE U0004480 A DEU0004480 A DE U0004480A DE 1115202 B DE1115202 B DE 1115202B
- Authority
- DE
- Germany
- Prior art keywords
- reflector
- reflective surface
- coating
- colorless
- colored
- 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
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
- F21S41/125—Coloured light
-
- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Verfahren zur Herstellung eines farbigen Reflektors für Fahrzeugscheinwerfer, insbesondere für Nebelscheinwerfer Die Erfindung betrifft ein Verfahren zur Herstellung eines farbigen Reflektors für Fahrzeugscheinwerfer, insbesondere für Nebelscheinwerfer, dessen spiegelnde Oberfläche mit einem lichtdurchlässigen farblosen Überzug aus Lack od. dgl. gegen Feuchtigkeit und mechanische Beschädigungen geschützt ist. Dieser Schutzüberzug verliert bekanntlich unter der Einwirkung von Wärmestrahlung seine ursprüngliche Farblosigkeit und vergilbt.Process for the production of a colored reflector for vehicle headlights, in particular for fog lights The invention relates to a method of manufacture a colored reflector for vehicle headlights, especially for fog lights, its reflective surface with a translucent colorless coating Paint or the like. Is protected against moisture and mechanical damage. This As is well known, the protective coating loses its properties under the action of thermal radiation original colorlessness and yellowed.
Die vorliegende Erfindung verwendet diese allgemein bekannte Erscheinung zur Herstellung von Reflektoren für Scheinwerfer mit farbigem Licht, und besteht darin, daß der auf der spiegelnden Oberfläche des Reflektors aufgebrachte, an sich farblose, jedoch farblich änderungsfähige Überzug in einem weiteren Herstellungsgang so stark erwärmt wird, daß er in ein farbiges Lichtfilter umgewandelt wird.The present invention makes use of this well-known phenomenon for the manufacture of reflectors for headlights with colored light, and consists in that the applied to the reflective surface of the reflector, per se colorless, but color changeable coating in a further production process is heated so much that it is converted into a colored light filter.
Es sind bereits Reflektoren mit einem gefärbten Überzug aus Lack bekannt. Ein nach der Erfindung hergestellter Reflektor besitzt jedoch gegenüber den bekannten Reflektoren eine bessere Lichtdurchlässigkeit, weil der Schutzüberzug keine beigemischten organischen Farbstoffe enthält. Außerdem wird die Farbe des Überzuges von der Wärmestrahlung der Glühlampe nicht mehr verändert, da die Temperatur der Glühlampe weit unter der Temperatur der Wärmebehandlung liegt. Der farblose Überzug ist chemisch so aufgebaut, daß der jeweils gewünschte Farbton durch die Wärmebehandlung herbeigeführt werden kann.There are already known reflectors with a colored coating of lacquer. However, a reflector produced according to the invention has over the known Reflectors have better light transmission because the protective coating did not add any contains organic dyes. In addition, the color of the coating is affected by thermal radiation the incandescent lamp no longer changes because the temperature of the incandescent lamp is far below that Temperature of the heat treatment. The colorless coating is chemically structured in such a way that that the desired color shade can be brought about by the heat treatment can.
Die spiegelnde Oberfläche des Reflektors wird vorzugsweise mittels eingeprägter Rillen od. dgl in kleinere Zonen aufgeteilt. Hierdurch wird eine einwandfreie Haftung des Überzuges erreicht, weil durch die kleineren Flächen die Bildung von Rissen verhindert wird. Bei Reflektoren, deren spiegelnde Oberfläche im Vakuum auf eine Haftgrundierung aufgedampft ist, empfiehlt es sich, den Lack des farblosen überzuges auch für die Haftgrundierung zu verwenden.The reflective surface of the reflector is preferably by means of embossed grooves or the like divided into smaller zones. This is a flawless Adhesion of the coating achieved because of the smaller areas the formation of Cracking is prevented. In the case of reflectors, their reflective surface is exposed in a vacuum If an adhesive primer is evaporated, it is advisable to paint the colorless can also be used for the adhesive primer.
Die Erfindung ist in der Zeichnung an einem Ausführungsbeispiel veranschaulicht, und zwar zeigt Fig. 1 einen Längsschnitt durch einen Reflektor und Fig. 2 eine Draufsicht auf den Reflektor.The invention is illustrated in the drawing using an exemplary embodiment, namely, FIG. 1 shows a longitudinal section through a reflector and FIG. 2 shows a plan view on the reflector.
Der Reflektor 1 ist in an sich bekannter Weise aus einem Blechzuschnitt hergestellt. Seine Innenfläche ist mit einem spiegelnden Belag versehen. Dieser spiegelnde Belag wird durch einen Überzug aus farblosem Lack od. dgl. gegen Korrosion geschützt. Der lichtdurchlässige Überzug ist chemisch so aufgebaut, daß durch eine nachträgliche Wärmebehandlung seine Einfärbung erfolgt.The reflector 1 is made from a sheet metal blank in a manner known per se manufactured. Its inner surface is provided with a reflective coating. This The reflective coating is protected against corrosion by a coating of colorless varnish or the like protected. The transparent coating is chemically built up so that by a subsequent heat treatment its coloring takes place.
Versuche haben ergeben, daß bei Überzügen aus Hochvakuumlacken mit einer Viskosität bis zu 30 Sekunden nach DIN, die mit Schichtstärken bis zu 150 m!, und bei Temperaturen bis zu etwa 200° C eingebrannt werden, ein gleichmäßig durchscheinender, gelbgefärbter Überzug entsteht. Derartig hergestellte Reflektoren sind besonders für dauerabgeblendete Fahrzeugscheinwerfer, insbesondere für Mopeds, geeignet, weil sie zur Beleuchtung der Fahrbahn und gleichzeitig als Nebelscheinwerfer zu verwenden sind. Der Blendwert und die Lichtstärke des Scheinwerfers werden durch die nach der Erfindung hergestellte Schutzlackierung nicht wesentlich herabgesetzt. Ebenso erscheint die Korrosionsbeständigkeit gegenüber Quarzschutzschichten um 10001o verbessert, wenn die Prüfung nach DIN im Salzsprühtest oder in der sogenannten Industrieluft (Kesternich-Apparatur) vorgenommen wird.Tests have shown that with coatings from high vacuum paints with a viscosity of up to 30 seconds according to DIN, those with layer thicknesses of up to 150 m !, and can be baked in at temperatures of up to approx. 200 ° C a translucent, yellow-colored coating is produced. Reflectors produced in this way are especially for permanently dimmed vehicle headlights, especially for mopeds, suitable because they are used to illuminate the road and at the same time as fog lights are to be used. The glare value and the light intensity of the headlight are through the protective coating produced according to the invention is not significantly reduced. The corrosion resistance to quartz protective layers also appears to be around 10001o improved if the test according to DIN in the salt spray test or in the so-called industrial air (Kesternich apparatus) is made.
Damit der Lacküberzug auch bei Dauerbetrieb der Glühlampe nicht rissig wird, ist die spiegelnde Oberfläche des Reflektors 1 mittels Rillen 2 in kleinere Zonen 3 aufgeteilt.So that the paint coating does not crack even when the light bulb is used continuously is the reflective surface of the reflector 1 by means of grooves 2 in smaller Zones 3 divided.
Die Erfindung soll nicht auf Reflektoren der beschriebenen Art beschränkt bleiben, sondern kann sinngemäß bei allen Scheinwerfern mit farbigem Licht Anwendung finden.The invention is not intended to be limited to reflectors of the type described but can be used analogously for all headlights with colored light Find.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEU4480A DE1115202B (en) | 1957-04-11 | 1957-04-11 | Process for the production of a colored reflector for vehicle headlights, in particular for fog lights |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEU4480A DE1115202B (en) | 1957-04-11 | 1957-04-11 | Process for the production of a colored reflector for vehicle headlights, in particular for fog lights |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1115202B true DE1115202B (en) | 1961-10-19 |
Family
ID=7565536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEU4480A Pending DE1115202B (en) | 1957-04-11 | 1957-04-11 | Process for the production of a colored reflector for vehicle headlights, in particular for fog lights |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1115202B (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2375669A (en) * | 1943-09-17 | 1945-05-08 | Gen Motors Corp | Reflector |
-
1957
- 1957-04-11 DE DEU4480A patent/DE1115202B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2375669A (en) * | 1943-09-17 | 1945-05-08 | Gen Motors Corp | Reflector |
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