A method for manufacturing an optical element out of glass comprises placing a blank made of glass on an annular contact face of a supporting body having a hollow cross section. The blank is heated on the supporting body in a cavity of a protective cap that is arranged in a furnace cavity, such that a temperature gradient is established in the blank in such a way that the blank is cooler inside than on an outside region. The blank is press molded to form the optical element.


    Access

    Download


    Export, share and cite



    Title :

    Method for manufacturing an optical element out of glass


    Contributors:

    Publication date :

    2023-05-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C03B Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle , MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES



    METHOD FOR MANUFACTURING AN OPTICAL ELEMENT OUT OF GLASS

    KUPPE ALEXANDER / MÜHLE PETER | European Patent Office | 2020

    Free access

    OPTICAL ELEMENT AND MANUFACTURING METHOD FOR OPTICAL ELEMENT

    YANAGISAWA TAKAMARO / KIKUCHI IKUYA / IMAI TETSUYA | European Patent Office | 2020

    Free access

    Vehicle roof glass element, method and tool for manufacturing a vehicle roof glass element

    LUDWIG MATTHIAS / RÖDER JOACHIM / KIRCHNER MAXIMILIAN | European Patent Office | 2020

    Free access

    OPTICAL ELEMENT AND MANUFACTURING METHOD THEREFOR

    YAMADA RYUJI | European Patent Office | 2021

    Free access