Rodenstock Gmbh

Stefan Radünz

Rüdiger Scherschlicht

An optical element includes a substrate and an interferometric reflection-reducing layer system on at least one surface of the substrate. The layer system includes a stack of at least four successive layer packets, wherein each layer packet includes a first sub-layer with a first optical depth and a second sub-layer with a second optical depth which differs from the first optical depth. The refractive index of each first sub-layer nearer the substrate is greater than the refractive index of each second sub-layer further away from the substrate, of the respective stack, wherein the layer system has a brightness, a colorfulness, and a hue angle of a residual reflection color. The value of a change in the hue angle of the residual reflection color in a range of a viewing angle with the boundary values of 0° and 30° relative to a surface normal to the layer system is smaller than the value of a change in the colorfulness in the range of the viewing angle.

Optical element with a stack of layer packets, and method for producing the optical element

A self-controlling feedback method for operating at least one coating installation for producing layer systems, a method for producing a layer system in at least one coating installation, a method for running in a coating process in at least one coating installation for producing a layer system, a coating system for producing a layer system, a coating installation for producing a layer system, a system of coating installations for producing layer systems, a database for storing installation datasets, a computer program product for a method for operating at least one coating installation, and a data processing system for executing a data processing program are disclosed.

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Gilching, Germany

Stefan Radünz