公开(公告)号：US20220177362A1

公开(公告)日：2022-06-09

申请号：US17545547

申请日：2021-12-08

Applicant: Schott AG

Inventor： Thorsten Damm ,  Clemens Ottermann ,  Jens Herrmann

IPC: C03C17/34 ,  G02B27/01

Abstract: At least one composite workpiece includes: a substrate body including at least one first surface and at least one second surface, the at least one first surface of the substrate body being shaped convexly at least in areas and the at least one second surface of the substrate body being shaped concavely at least in areas, and the at least one composite workpiece has a bow with an absolute value of between 0.1 μm and 50 μm due to the curved shape of the at least one first surface and the at least one second surface; and at least one first coating, at least the at least one first surface of the substrate body being coated at least in areas with the first coating.