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WO2010066521A2 - Hybrid optics - Google Patents

Hybrid optics Download PDF

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Publication number
WO2010066521A2
WO2010066521A2 PCT/EP2009/064876 EP2009064876W WO2010066521A2 WO 2010066521 A2 WO2010066521 A2 WO 2010066521A2 EP 2009064876 W EP2009064876 W EP 2009064876W WO 2010066521 A2 WO2010066521 A2 WO 2010066521A2
Authority
WO
WIPO (PCT)
Prior art keywords
holder
glass
glass element
plastic
hybrid
Prior art date
Application number
PCT/EP2009/064876
Other languages
German (de)
French (fr)
Other versions
WO2010066521A3 (en
Inventor
Ralf Vollmer
Original Assignee
Osram Gesellschaft mit beschränkter Haftung
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 Osram Gesellschaft mit beschränkter Haftung filed Critical Osram Gesellschaft mit beschränkter Haftung
Publication of WO2010066521A2 publication Critical patent/WO2010066521A2/en
Publication of WO2010066521A3 publication Critical patent/WO2010066521A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B29C45/14434—Coating brittle material, e.g. glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/0005—Other surface treatment of glass not in the form of fibres or filaments by irradiation
    • C03C23/006—Other surface treatment of glass not in the form of fibres or filaments by irradiation by plasma or corona discharge
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
    • C03C23/008—Other surface treatment of glass not in the form of fibres or filaments comprising a lixiviation step
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/022—Mountings, adjusting means, or light-tight connections, for optical elements for lenses lens and mount having complementary engagement means, e.g. screw/thread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C2045/1486—Details, accessories and auxiliary operations
    • B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • 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
    • F21S41/25—Projection lenses

Definitions

  • the invention relates to a hybrid optics according to patent claim 1 or claim 2 and a method for producing hybrid optics according to claim 7.
  • Document WO 03/074251 A1 discloses such a hybrid optic comprising a glass lens and a molded plastic lens holder surrounding it. After encapsulation, alkali and alkaline earth metals (in particular sodium) can escape from the glass and chemically attack the surrounding plastic. This effect is due to the action of temperature and humidity, as z. B. arise when using the hybrid optics in a vehicle headlights, reinforced. This reduces the durability of the connection between the glass lens (e.g., crown glass) and the lens holder (e.g., polycarbonate), and thus the durability of the hybrid optical system.
  • the glass lens e.g., crown glass
  • the lens holder e.g., polycarbonate
  • the object of the present invention is to improve the durability or durability of hybrid optics.
  • the hybrid optics according to the invention has an optical glass element and a holder made of plastic, wherein at least one contact portion of the glass element rests against the holder.
  • the holder consists of ethylene-tetrafluoroethylene (ETFE) or ethylchlorotrifluoroethylene (ECTFE) or polychlorotrifluoroethylene (PCTFE) or polyamide (PA) or polyphenylene oxide (PPO) or polyethylene (PE) or polymethyl methacrylate (PMMA) or polypropylene (PP) or polystyrene (PS) or polyethersulfone (PES, transparent) or polysulfone or polytetrafluoroethene (PTFE) or perfluoroalkoxylalkane (PFA) or polyvinyl chloride (PVC) or polymethylpentene (PMP).
  • Hybrid optics whose holder according to the invention consists of one of these resistant plastics, have improved durability and durability.
  • the glass element in a second variant of the hybrid optics according to the invention with an optical glass element and a holder made of plastic, wherein at least one contact portion of the glass element rests against the holder, the glass element consists of quartz glass or phosphate glass or alkali-free glass or it has a barrier layer as a diffusion barrier for alkali and Alkaline earth metals. From such glass elements diffuse less or no alkali or alkaline earth metals, so that the plastic of the holder is less attacked. As a result, the hybrid optics according to the invention has improved durability and durability.
  • the glass element forms a glass lens
  • the holder forms a lens holder accordingly.
  • the glass element forms an optical fiber that bundles light generated by an LED.
  • the glass element forms a cover plate
  • the holder forms a cover plate holder accordingly.
  • All hybrid optics according to the invention can advantageously be arranged in or on a vehicle headlight, in which the requirements with regard to durability are particularly high even in the case of moisture and heat.
  • the glass element is hot deformed under an oxygen-containing atmosphere, or alkali and alkaline earth metals before encapsulating the glass element with the plastic of the holder removed at least from the contact portions of the glass lens. From such glass elements diffuse less alkali or alkaline earth metals, so that the plastic of the holder is less attacked.
  • the hybrid optics produced according to the invention have improved durability and durability.
  • the glass element to Removal of alkali and alkaline earth metals in aqueous solution or in sulfate-containing solution.
  • the glass element is subjected to a process gas in which a plasma is ignited.
  • the process gas contains hydrogen and / or nitrogen and / or ammonia.
  • the glass element preferably has 120 to 400 ° Celsius.
  • the figure shows a hybrid optics according to the invention with a glass lens 1 and a lens holder 2 made of plastic in a lateral section.
  • the hybrid optical system is constructed substantially rotationally symmetrical, wherein the imaged portion of the lens holder 2 is tubular. At its (in the figure) upper end portion a circumferential groove 4 is arranged on the inner circumference.
  • the glass lens 1 is approximately disc-shaped, wherein it has at its (in the figure) lower side a substantially flat light entrance surface Ia, while on its upper side has a concave curved light exit surface Ib.
  • the light of a light source not shown runs (in the figure) from bottom to top through the glass lens. 1
  • the glass lens 1 has an annular circumferential abutment portion 10 which is received positively in the groove 4 of the lens holder 2.
  • the contact section 10 is encapsulated by a plastic forming the lens holder 2.
  • the plastic of the lens holder in particular in the groove 4.
  • the lens holder 2 consists of one of the following resistant plastics: ethylene tetrafluoroethylene (ETFE) or ethylene chlorotrifluoroethylene (ECTFE) or polychlorotrifluoroethylene (PCTFE) or polyamide (PA) or polyphenylene oxide (PPO) or polyethylene (PE) or polymethylmethacrylate (PMMA) ) or polypropylene (PP) or polystyrene (PS) or polyethersulfone (PES, transparent) or polysulfone or polytetrafluoroethene (PTFE) or perfluoroalkoxylalkane (PFA) or polyvinyl chloride (PVC) or polymethylpentene (PMP).
  • EFE ethylene tetrafluoroethylene
  • ECTFE ethylene chlorotrifluoroethylene
  • PCTFE polychlorotrifluoroethylene
  • PA polyamide
  • PPO polyphenylene oxide
  • PE polyethylene
  • PMMA polymethylmethacryl
  • the weakening of the plastic of the hybrid optics according to the invention can also be prevented by the fact that the glass lens 1 consists of quartz glass or phosphate glass or alkali-free glass. Or the glass lens 1 is hot-formed during its production under oxygen-containing atmosphere. No or very few alkali or alkaline earth atoms diffuse from these types of glass or from glass produced in this way.
  • the glass lens 1 can be provided after its preparation with a barrier layer as a diffusion barrier for alkali and alkaline earth metals.
  • the glass lens 1 is washed after its preparation in an aqueous or in a sulfate-containing solution or subjected to a plasma.
  • the alkali or alkaline earth atoms are removed from the regions of the glass lens 1 close to the surface (in particular from the contact section 10).
  • a light guide made of glass according to the invention can be prepared or treated.
  • the holder is made of one of the following resistant plastics: ETFE, ECTFE, PCTFE, PA, PPO, PE, PMMA, PP, PS, PES, PTFE, PFA, PVC or PMP.
  • the glass element consists of quartz glass or phosphate glass or of alkali-free glass or it has a barrier layer as a diffusion barrier for alkali metals and alkaline earth metals. From such glass elements diffuse less alkali or alkaline earth metals.
  • Durability of a hybrid optic comprising a glass element and a plastic holder, wherein at least one Abutting portion of the glass element to the lens holder, the glass element is under hot oxygen-containing atmosphere hot deformed, or alkali and alkaline earth metals are removed before encapsulation of the glass element by the plastic of the holder at least from the contact portions of the glass element. Even from such glass elements diffuse less alkali or alkaline earth metals, so that the plastic of the holder is less attacked.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Lenses (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to hybrid optic having an optical glass element and a holder made of plastic, wherein at least one contact section of the glass element contacts the holder. In a first application example of the invention, the holder is made of one of the following resistant plastics: ETFE, ECTFE, PCTFE, PA, PPO, PE, PMMA, PP, PS, PES, PTFE, PFA, PVC or PMP. In a second application example of the invention, the glass element is made of quartz glass or phosphate glass or of alkali-free glass or it exhibits a barrier layer as a diffusion block for alkali and earth-alkaline metals. Fewer alkali and earth-alkaline metals diffuse out of such types of glass elements. In the method according to the invention for increasing the durability of hybrid optics that exhibit a glass element and a holder made of plastic, wherein at least one contact section of the glass element contacts the holder, the glass element is heat-deformed in an oxygenated atmosphere or alkali and earth-alkaline metals are removed at least from the contact sections of the glass element before coating of the glass element by the plastic of the holder. Fewer alkali and earth-alkaline metals also diffuse out of such types of glass elements, so that the plastic of the holder is less affected. In both variants of the hybrid optic according to the invention and in the production method for hybrid optics according to the invention, a weakness of the plastic of the holder is prevented, resulting in the hybrid optic according to the invention exhibiting improved durability and resistance.

Description

Hybridoptik hybrid optics
Technisches GebietTechnical area
Die Erfindung betrifft eine Hybridoptik gemäß Patentan- spruch 1 bzw. Patentanspruch 2 und ein Verfahren zur Herstellung von Hybridoptiken gemäß Patentanspruch 7.The invention relates to a hybrid optics according to patent claim 1 or claim 2 and a method for producing hybrid optics according to claim 7.
Stand der TechnikState of the art
Dokument WO 03/074251 Al offenbart eine derartige Hybridoptik, die eine Glaslinse und einen diese umgebenden gespritzten Linsenhalter aus Kunststoff aufweist. Nach dem Umspritzen können aus dem Glas Alkali- und Erdalkalimetalle (insbesondere Natrium) austreten und den umgebenden Kunststoff chemisch angreifen. Dieser Effekt wird durch das Einwirken von Temperatur und Feuchtigkeit, wie sie z. B. beim Einsatz der Hybridoptik in einem Fahrzeugschein- werfer entstehen, verstärkt. Dadurch ist die Haltbarkeit bzw. die Beständigkeit der Verbindung zwischen der Glaslinse (z.B. aus Kronglas) und dem Linsenhalter (z.B. aus Polycarbonat ) und damit die Haltbarkeit bzw. die Beständigkeit der Hybridoptik verringert.Document WO 03/074251 A1 discloses such a hybrid optic comprising a glass lens and a molded plastic lens holder surrounding it. After encapsulation, alkali and alkaline earth metals (in particular sodium) can escape from the glass and chemically attack the surrounding plastic. This effect is due to the action of temperature and humidity, as z. B. arise when using the hybrid optics in a vehicle headlights, reinforced. This reduces the durability of the connection between the glass lens (e.g., crown glass) and the lens holder (e.g., polycarbonate), and thus the durability of the hybrid optical system.
Darstellung der ErfindungPresentation of the invention
Die Aufgabe der vorliegenden Erfindung ist es, die Haltbarkeit bzw. die Beständigkeit von Hybridoptiken zu verbessern .The object of the present invention is to improve the durability or durability of hybrid optics.
Diese Aufgabe wird gelöst durch eine Hybridoptik gemäß Patentanspruch 1 bzw. Patentanspruch 2 oder durch ein Verfahren zur Herstellung von Hybridoptiken gemäß Patentanspruch 7. Besonders vorteilhafte Ausgestaltungen sind in den abhängigen Patentansprüchen beschrieben.This object is achieved by a hybrid optics according to claim 1 or claim 2 or by a method for producing hybrid optics according to claim 7. Particularly advantageous embodiments are described in the dependent claims.
Die erfindungsgemäße Hybridoptik hat ein optisches Glaselement und einen Halter aus Kunststoff, wobei zumindest ein Anlageabschnitt des Glaselements an dem Halter anliegt. Bei einer ersten Variante der Erfindung besteht der Halter aus Ethylen-Tetrafluorethylen (ETFE) oder E- thylenchlortrifluorethylen (ECTFE) oder Polychlortrifluorethylen (PCTFE) oder Polyamid (PA) oder Polyphenylenoxid (PPO) oder Polyethylen (PE) oder Polymethylmethacrylat (PMMA) oder Polypropylen (PP) oder Polystyrol (PS) oder Polyethersulfon (PES, transparent) oder Polysulfon oder Polytetrafluorethen (PTFE) oder Perfluoralkoxylalkan (PFA) oder Polyvinylchlorid (PVC) oder aus Polymethylpen- ten (PMP) . Hybridoptiken, deren Halter erfindungsgemäß aus einem dieser resistenten Kunststoffe besteht, weisen eine verbesserte Haltbarkeit und Beständigkeit auf.The hybrid optics according to the invention has an optical glass element and a holder made of plastic, wherein at least one contact portion of the glass element rests against the holder. In a first variant of the invention, the holder consists of ethylene-tetrafluoroethylene (ETFE) or ethylchlorotrifluoroethylene (ECTFE) or polychlorotrifluoroethylene (PCTFE) or polyamide (PA) or polyphenylene oxide (PPO) or polyethylene (PE) or polymethyl methacrylate (PMMA) or polypropylene (PP) or polystyrene (PS) or polyethersulfone (PES, transparent) or polysulfone or polytetrafluoroethene (PTFE) or perfluoroalkoxylalkane (PFA) or polyvinyl chloride (PVC) or polymethylpentene (PMP). Hybrid optics, whose holder according to the invention consists of one of these resistant plastics, have improved durability and durability.
Bei einer zweiten Variante der erfindungsgemäßen Hybridoptik mit einem optischen Glaselement und einem Halter aus Kunststoff, wobei zumindest ein Anlageabschnitt des Glaselements an dem Halter anliegt, besteht das Glaselement aus Quarzglas oder Phosphatglas oder aus alkalifreiem Glas oder es weist eine Barriereschicht als Diffusionssperre für Alkali- und Erdalkalimetalle auf. Aus der- artigen Glaselementen diffundieren weniger oder keine Alkali- bzw. Erdalkalimetalle, so dass der Kunststoff des Halters weniger angegriffen wird. Dadurch weist die erfindungsgemäße Hybridoptik eine verbesserte Haltbarkeit und Beständigkeit auf. Bei einem bevorzugten Ausführungsbeispiel bildet das Glaselement eine Glaslinse aus, und der Halter bildet entsprechend einen Linsenhalter aus.In a second variant of the hybrid optics according to the invention with an optical glass element and a holder made of plastic, wherein at least one contact portion of the glass element rests against the holder, the glass element consists of quartz glass or phosphate glass or alkali-free glass or it has a barrier layer as a diffusion barrier for alkali and Alkaline earth metals. From such glass elements diffuse less or no alkali or alkaline earth metals, so that the plastic of the holder is less attacked. As a result, the hybrid optics according to the invention has improved durability and durability. In a preferred embodiment, the glass element forms a glass lens, and the holder forms a lens holder accordingly.
Bei einem alternativen besonders bevorzugten Ausführungs- beispiel bildet das Glaselement einen Lichtleiter aus, der von einer LED erzeugtes Licht bündelt.In an alternative particularly preferred embodiment, the glass element forms an optical fiber that bundles light generated by an LED.
Bei einer weiteren Variante bildet das Glaselement eine Abdeckplatte aus, und der Halter bildet entsprechend einen Abdeckplattenhalter aus.In a further variant, the glass element forms a cover plate, and the holder forms a cover plate holder accordingly.
Alle erfindungsgemäßen Hybridoptiken lassen sich vorteilhafter Weise in oder an einem Fahrzeugscheinwerfer anordnen, bei dem die Anforderungen bzgl. Haltbarkeit auch bei Feuchtigkeit und Wärme besonders hoch sind.All hybrid optics according to the invention can advantageously be arranged in or on a vehicle headlight, in which the requirements with regard to durability are particularly high even in the case of moisture and heat.
Bei dem erfindungsgemäßen Verfahren zur Erhöhung der Haltbarkeit einer Hybridoptik, die ein optisches Glaselement und einen Halter aus Kunststoff aufweist, wobei zumindest ein Anlageabschnitt des Glaselements an dem Halter anliegt, wird das Glaselement unter sauerstoffhaltiger Atmosphäre heiß verformt, oder Alkali- und Erdalkali- metalle werden vor einem Umspritzen des Glaselements mit dem Kunststoff des Halters zumindest aus den Anlageabschnitten der Glaslinse entfernt. Aus derartigen Glaselementen diffundieren weniger Alkali- bzw. Erdalkalimetalle, so dass der Kunststoff des Halters weniger ange- griffen wird. Dadurch weisen die erfindungsgemäß hergestellten Hybridoptiken eine verbesserte Haltbarkeit und Beständigkeit auf.In the inventive method for increasing the durability of a hybrid optical system comprising an optical glass element and a plastic holder, wherein at least one contact portion of the glass element is applied to the holder, the glass element is hot deformed under an oxygen-containing atmosphere, or alkali and alkaline earth metals before encapsulating the glass element with the plastic of the holder removed at least from the contact portions of the glass lens. From such glass elements diffuse less alkali or alkaline earth metals, so that the plastic of the holder is less attacked. As a result, the hybrid optics produced according to the invention have improved durability and durability.
Bei einem besonders bevorzugten Ausführungsbeispiel des erfindungsgemäßen Verfahrens wird das Glaselement zur Entfernung der Alkali- und Erdalkalimetalle in wässriger Lösung oder in sulfathaltiger Lösung gewaschen.In a particularly preferred embodiment of the method according to the invention, the glass element to Removal of alkali and alkaline earth metals in aqueous solution or in sulfate-containing solution.
Bei einem alternativen besonders bevorzugten Ausführungsbeispiel des erfindungsgemäßen Verfahrens wird das Glas- element mit einem Prozessgas beaufschlagt, in dem ein Plasma gezündet wird.In an alternative particularly preferred embodiment of the method according to the invention, the glass element is subjected to a process gas in which a plasma is ignited.
Vorzugsweise enthält das Prozessgas Wasserstoff und/oder Stickstoff und/oder Ammoniak.Preferably, the process gas contains hydrogen and / or nitrogen and / or ammonia.
Vorzugsweise weist das Glaselement dabei 120 bis 400° Celsius auf.The glass element preferably has 120 to 400 ° Celsius.
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention
Im Folgenden wird die Erfindung anhand eines Ausführungsbeispiels näher erläutert.In the following the invention will be explained in more detail with reference to an embodiment.
Die Figur zeigt eine erfindungsgemäße Hybridoptik mit einer Glaslinse 1 und einem Linsenhalter 2 aus Kunststoff in einem seitlichen Schnitt.The figure shows a hybrid optics according to the invention with a glass lens 1 and a lens holder 2 made of plastic in a lateral section.
Die Hybridoptik ist im Wesentlichen rotationssymmetrisch aufgebaut, wobei der abgebildete Abschnitt des Linsenhalters 2 rohrförmig ausgebildet ist. An seinem (in der Figur) oberen Endabschnitt ist am Innenumfang eine umlau- fende Nut 4 angeordnet.The hybrid optical system is constructed substantially rotationally symmetrical, wherein the imaged portion of the lens holder 2 is tubular. At its (in the figure) upper end portion a circumferential groove 4 is arranged on the inner circumference.
Die Glaslinse 1 ist etwa scheibenförmig ausgebildet, wobei sie an ihrer (in der Figur) unteren Seite eine im Wesentlichen ebene Lichteintrittsfläche Ia hat, während sie an ihrer oberen Seite eine konkav gewölbte Lichtaus- trittsflache Ib hat.The glass lens 1 is approximately disc-shaped, wherein it has at its (in the figure) lower side a substantially flat light entrance surface Ia, while on its upper side has a concave curved light exit surface Ib.
Das Licht einer nicht gezeigten Lichtquelle verläuft (in der Figur) von unten nach oben durch die Glaslinse 1. An ihrem äußeren Rand hat die Glaslinse 1 einen ringförmigen umlaufenden Anlageabschnitt 10, der in der Nut 4 des Linsenhalters 2 formschlüssig aufgenommen ist.The light of a light source not shown runs (in the figure) from bottom to top through the glass lens. 1 At its outer edge, the glass lens 1 has an annular circumferential abutment portion 10 which is received positively in the groove 4 of the lens holder 2.
Bei der Herstellung der erfindungsgemäßen Hybridoptik wird der Anlageabschnitt 10 von einem den Linsenhalter 2 bildenden Kunststoff umspritzt. Bei derartigen Hybridoptiken gemäß dem Stand der Technik greifen aus der Glaslinse 1 bzw. insbesondere aus einem Anlageabschnitt 10 austretende Alkali- bzw. Erdalkalimetalle den Kunststoff des Linsenahalters insbesondere in der Nut 4 an.In the production of the hybrid optical system according to the invention, the contact section 10 is encapsulated by a plastic forming the lens holder 2. In such hybrid optics according to the prior art attack from the glass lens 1 or in particular from a contact portion 10 leaking alkali or alkaline earth metals, the plastic of the lens holder in particular in the groove 4.
Erfindungsgemäß besteht der Linsenhalter 2 aus einem der folgenden dagegen resistenten Kunststoffe: Ethylen- Tetrafluorethylen (ETFE) oder Ethylenchlortrifluorethylen (ECTFE) oder Polychlortrifluorethylen (PCTFE) oder Polya- mid (PA) oder Polyphenylenoxid (PPO) oder Polyethylen (PE) oder Polymethylmethacrylat (PMMA) oder Polypropylen (PP) oder Polystyrol (PS) oder Polyethersulfon (PES, transparent) oder Polysulfon oder Polytetrafluorethen (PTFE) oder Perfluoralkoxylalkan (PFA) oder Polyvinyl- Chlorid (PVC) oder Polymethylpenten (PMP) .According to the invention, the lens holder 2 consists of one of the following resistant plastics: ethylene tetrafluoroethylene (ETFE) or ethylene chlorotrifluoroethylene (ECTFE) or polychlorotrifluoroethylene (PCTFE) or polyamide (PA) or polyphenylene oxide (PPO) or polyethylene (PE) or polymethylmethacrylate (PMMA) ) or polypropylene (PP) or polystyrene (PS) or polyethersulfone (PES, transparent) or polysulfone or polytetrafluoroethene (PTFE) or perfluoroalkoxylalkane (PFA) or polyvinyl chloride (PVC) or polymethylpentene (PMP).
Alternativ kann die Schwächung des Kunststoffs der erfindungsgemäßen Hybridoptik auch dadurch verhindert werden, dass die Glaslinse 1 aus Quarzglas oder Phosphatglas oder aus alkalifreiem Glas besteht. Oder die Glaslinse 1 wird während ihrer Herstellung unter sauerstoffhaltiger Atmosphäre heiß verformt. Aus diesen Glassorten bzw. aus auf diese Weise hergestelltem Glas diffundieren keine bzw. verschwindend wenige Alkali- bzw. Erdalkali-Atome.Alternatively, the weakening of the plastic of the hybrid optics according to the invention can also be prevented by the fact that the glass lens 1 consists of quartz glass or phosphate glass or alkali-free glass. Or the glass lens 1 is hot-formed during its production under oxygen-containing atmosphere. No or very few alkali or alkaline earth atoms diffuse from these types of glass or from glass produced in this way.
Alternativ kann die Glaslinse 1 nach ihrer Herstellung mit einer Barriereschicht als Diffusionssperre für Alkali- und Erdalkalimetalle versehen werden. Oder die Glaslinse 1 wird nach ihrer Herstellung in einer wässrigen oder in einer sulfathaltigen Lösung gewaschen oder mit einem Plasma beaufschlagt. Dadurch werden die Alkali- bzw. Erdalkali-Atome aus den oberflächennahen Be- reichen der Glaslinse 1 (insbesondere aus dem Anlageabschnitt 10) entfernt.Alternatively, the glass lens 1 can be provided after its preparation with a barrier layer as a diffusion barrier for alkali and alkaline earth metals. Or the glass lens 1 is washed after its preparation in an aqueous or in a sulfate-containing solution or subjected to a plasma. As a result, the alkali or alkaline earth atoms are removed from the regions of the glass lens 1 close to the surface (in particular from the contact section 10).
Erfindungsgemäß sind durch alle o.g. Maßnahmen die Haltbarkeit einer Hybridoptik insbesondere auch bei längerem Einwirken von höheren Temperaturen und erhöhter Luft- feuchtigkeit z.B. bei einem Einsatz im Automobil verbessert .According to the invention by o.g. Measures the durability of a hybrid optics in particular even with prolonged exposure to higher temperatures and increased humidity, e.g. Improved in a use in the automobile.
Bei einem weiteren Ausführungsbeispiel kann statt der Glaslinse auch ein Lichtleiter aus Glas erfindungsgemäß hergestellt oder behandelt werden.In a further embodiment, instead of the glass lens and a light guide made of glass according to the invention can be prepared or treated.
Offenbart ist eine Hybridoptik mit einem optischen Glaselement und einem Halter aus Kunststoff, wobei zumindest ein Anlageabschnitt des Glaselements an dem Halter anliegt. Bei einem ersten Ausführungsbeispiel der Erfindung besteht der Halter aus einem der folgenden resistenten Kunststoffe: ETFE, ECTFE, PCTFE, PA, PPO, PE, PMMA, PP, PS, PES, PTFE, PFA, PVC oder PMP.Disclosed is a hybrid optical system with an optical glass element and a holder made of plastic, wherein at least one contact portion of the glass element rests against the holder. In a first embodiment of the invention, the holder is made of one of the following resistant plastics: ETFE, ECTFE, PCTFE, PA, PPO, PE, PMMA, PP, PS, PES, PTFE, PFA, PVC or PMP.
Bei einem zweiten Ausführungsbeispiel der Erfindung besteht das Glaselement aus Quarzglas oder Phosphatglas o- der aus alkalifreiem Glas oder es weist eine Barriere- schicht als Diffusionssperre für Alkali- und Erdalkalimetalle auf. Aus derartigen Glaselementen diffundieren weniger Alkali- bzw. Erdalkalimetalle.In a second exemplary embodiment of the invention, the glass element consists of quartz glass or phosphate glass or of alkali-free glass or it has a barrier layer as a diffusion barrier for alkali metals and alkaline earth metals. From such glass elements diffuse less alkali or alkaline earth metals.
Bei dem erfindungsgemäßen Verfahren zur Erhöhung derIn the inventive method for increasing the
Haltbarkeit einer Hybridoptik, die ein Glaselement und einen Halter aus Kunststoff aufweist, wobei zumindest ein Anlageabschnitt der Glaselements an dem Linsenhalter anliegt, wird das Glaselement unter sauerstoffhaltiger Atmosphäre heiß verformt, oder Alkali- und Erdalkalimetalle werden vor einem Umspritzen des Glaselements durch den Kunststoff des Halters zumindest aus den Anlageabschnitten des Glaselements entfernt. Auch aus derartigen Glaselementen diffundieren weniger Alkali- bzw. Erdalkalimetalle, so dass der Kunststoff des Halters weniger angegriffen wird.Durability of a hybrid optic comprising a glass element and a plastic holder, wherein at least one Abutting portion of the glass element to the lens holder, the glass element is under hot oxygen-containing atmosphere hot deformed, or alkali and alkaline earth metals are removed before encapsulation of the glass element by the plastic of the holder at least from the contact portions of the glass element. Even from such glass elements diffuse less alkali or alkaline earth metals, so that the plastic of the holder is less attacked.
In beiden Varianten der erfindungsgemäßen Hybridoptik und in dem erfindungsgemäßen Herstellungsverfahren für Hybridoptiken wird eine Schwächung des Kunststoffs des Halters vermieden, wodurch die erfindungsgemäße Hybridoptik eine verbesserte Haltbarkeit und Beständigkeit aufweist. In both variants of the hybrid optics according to the invention and in the manufacturing method according to the invention for hybrid optics, a weakening of the plastic of the holder is avoided, as a result of which the hybrid optics according to the invention has improved durability and durability.

Claims

Ansprüche claims
1. Hybridoptik, die ein optisches Glaselement (1) und einen Halter (2) aus Kunststoff aufweist, wobei zumindest ein Anlageabschnitt (10) des Glaselements (1) an dem Halter (2) anliegt, dadurch gekennzeichnet, dass der Halter (2) aus Ethylentetrafluorethylen (ET- FE) oder Ethylenchlortrifluorethylen (ECTFE) oder Po- lychlortrifluorethylen (PCTFE) oder Polyamid (PA) o- der Polyphenylenoxid (PPO) oder Polyethylen (PE) oder Polymethylmethacrylat (PMMA) oder Polypropylen (PP) oder Polystyrol (PS) oder Polyethersulfon (PES, transparent) oder Polysulfon oder Polytetrafluorethen (PTFE) oder Perfluoralkoxylalkan (PFA) oder Polyvinylchlorid (PVC) oder Polymethylpenten (PMP) besteht.1. hybrid optics comprising an optical glass element (1) and a holder (2) made of plastic, wherein at least one abutment portion (10) of the glass element (1) rests against the holder (2), characterized in that the holder (2) of ethylene tetrafluoroethylene (ETFE) or ethylene chlorotrifluoroethylene (ECTFE) or polychlorotrifluoroethylene (PCTFE) or polyamide (PA) or of polyphenylene oxide (PPO) or polyethylene (PE) or polymethyl methacrylate (PMMA) or polypropylene (PP) or polystyrene (PS ) or polyethersulfone (PES, transparent) or polysulfone or polytetrafluoroethene (PTFE) or perfluoroalkoxylalkane (PFA) or polyvinyl chloride (PVC) or polymethylpentene (PMP).
2. Hybridoptik, die ein optisches Glaselement (1) und einen Halter (2) aus Kunststoff aufweist, wobei zumindest ein Anlageabschnitt (10) des Glaselements (1) an dem Halter (2) anliegt, dadurch gekennzeichnet, dass das Glaselement (1) aus Quarzglas oder Phosphat- glas oder aus alkalifreiem Glas besteht oder eine Barriereschicht als Diffusionssperre für Alkali- und Erdalkalimetalle aufweist.2. hybrid optics comprising an optical glass element (1) and a holder (2) made of plastic, wherein at least one abutment portion (10) of the glass element (1) rests against the holder (2), characterized in that the glass element (1) is made of quartz glass or phosphate glass or alkali-free glass or has a barrier layer as a diffusion barrier for alkali and alkaline earth metals.
3. Hybridoptik nach Anspruch 1 oder 2, wobei das Glaselement eine Glaslinse (1) ausbildet, und wobei der Halter einen Linsenhalter (2) ausbildet.A hybrid optical system according to claim 1 or 2, wherein the glass member forms a glass lens (1), and wherein the holder forms a lens holder (2).
4. Hybridoptik nach Anspruch 1 oder 2, wobei das Glaselement einen Lichtleiter ausbildet, der von einer LED erzeugtes Licht bündelt. 4. hybrid optics according to claim 1 or 2, wherein the glass element forms an optical fiber which bundles light generated by an LED.
5. Hybridoptik nach Anspruch 1 oder 2, wobei das Glaselement eine Abdeckplatte ausbildet, und wobei der Halter einen Abdeckplattenhalter ausbildet.5. hybrid optics according to claim 1 or 2, wherein the glass element forms a cover plate, and wherein the holder forms a Abdeckplattenhalter.
6. Hybridoptik gemäß einem der vorhergehenden Ansprüche, die in einem Fahrzeugscheinwerfer angeordnet ist.6. hybrid optics according to one of the preceding claims, which is arranged in a vehicle headlight.
7. Verfahren zur Erhöhung der Haltbarkeit einer Hybridoptik, die ein optisches Glaselement (1) und einen Halter (2) aus Kunststoff aufweist, wobei zumindest ein Anlageabschnitt (10) des Glaselements (1) an dem Halter (2) anlieget, dadurch gekennzeichnet, dass das Glaselement (1) unter sauerstoffhaltiger Atmosphäre heiß verformt wird, oder dass vor einem Umspritzen des Glaselements (1) mit dem Kunststoff des Halters (2) Alkali- und Erdalkalimetalle zumindest aus den Anlageabschnitten (10) des Glaselements (1) entfernt werden.7. A method for increasing the durability of a hybrid optic comprising an optical glass element (1) and a holder (2) made of plastic, wherein at least one abutment portion (10) of the glass element (1) abuts the holder (2), characterized in that the glass element (1) is hot-formed under an atmosphere containing oxygen, or that alkali and alkaline-earth metals are removed at least from the abutment sections (10) of the glass element (1) before encapsulation of the glass element (1) with the plastic of the holder (2).
8. Verfahren nach Patentanspruch 7, wobei das Entfernen durch Waschen in wässriger Lösung oder in sulfathaltiger Lösung erreicht wird.8. The method according to claim 7, wherein the removal is achieved by washing in aqueous solution or in sulfate-containing solution.
9. Verfahren nach Patentanspruch 7, wobei das Entfernen durch Beaufschlagen mit einem Prozessgas erreicht wird, in dem ein Plasma gezündet wird.9. The method according to claim 7, wherein the removal is achieved by applying a process gas in which a plasma is ignited.
10. Verfahren nach Patentanspruch 9, wobei das Prozessgas Wasserstoff und/oder Stickstoff und/oder Ammoniak enthält.10. The method according to claim 9, wherein the process gas contains hydrogen and / or nitrogen and / or ammonia.
11. Verfahren nach Patentanspruch 9 oder 10, wobei das Glaselement (1) 120 bis 400° Celsius aufweist. 11. The method according to claim 9 or 10, wherein the glass element (1) has 120 to 400 ° Celsius.
PCT/EP2009/064876 2008-12-09 2009-11-10 Hybrid optics WO2010066521A2 (en)

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