Method of making a coated three-dimensionally shaped glass ceramic body, especially a fireplace or oven viewing window pane
AssigneeSchott AG
InventorsHolger Waldschmidt, Tino Krieg, Marten Walther
Life of this patent
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Abstract
The method produces a coated three-dimensionally shaped glass ceramic body, especially a viewing window pane, which is provided with a reflective, anti-reflective or partially reflective layer. The method includes coating a flat green glass body to produce a coated green glass body and subsequently shaping the coated green glass body and ceramizing to form the coated three-dimensionally shaped glass ceramic body. In preferred embodiments the shaping the ceramizing occur at the same time. The reflective or anti-reflective coating is preferably applied to the green-glass body by an economical sol-gel process.
Claims7
A method of making a coated three-dimensional glass ceramic body, said method comprising the steps of:
- a) coating a flat green glass body that is suitable for forming a glass ceramic so as to form a coated flat green glass body;
- and
- b) after the coating of step a), shaping and ceramizing the coated flat green glass body to form the coated three-dimensional glass ceramic body, wherein the green glass body shrinks during the ceramizing;
- wherein the flat green glass body is provided with an interference layer system by said coating, and
- wherein said interference layer system is produced by a sol-gel process.
Dependencies are inferred from the claim text.