Patent ID: 9157147
Filing Date: 2015-10-13
Classification: C23C,G01B

Abstract:
1. A test glass changing system for selectively coating and optically measuring a test glass in a coating chamber of a vacuum coating installation, in which a moveable rotary disk is arranged for guiding at least one substrate on a path through a coating material flow, the test glass changing system comprising: a test glass holder having a test glass plate for holding the test glass and a cover for selectively covering the test glass plate, and a rotation device for rotating the test glass plate around an axis, which is aligned approximately parallel to a rotational axis of the rotary disk, wherein the test glass holder is removable and includes the test glass plate and the cover forming a unit positioned on the rotary disk as a unit, such that the test glass holder is removed from the rotary disk and the coating chamber as a unit, a plurality of recesses disposed on the rotary disk and arranged on a common great circle around the rotational axis, wherein the recesses receive the at least one substrate or the test glass holder, and a stamp of a lifting device arranged in the coating chamber is disposed beneath one of the plurality of recesses and displaced in an axial direction during a substrate change such that the stamp is configured to lift the substrate or the test glass holder disposed in the recess out of the rotary disk.