Schott Ag

Uwe Nolte

Bernd Hoetzel

Robert Frost

Eric Senner

Christoph Hermanns

Thorsten Wilke

Noboru Kobayashi

Patrick Markschläger

Christian Thiemann

Danielzik Burkhard

Ingo Köhler

A method for controlling alkali emissions of a glass element during hot forming is provided. The method includes the steps of: heating the glass element using one or more burner units each providing a burner flame to provide a heated glass element; sensing light emissions of a total light emitting area of the heated glass element and the burner flame of the one or more burner units via one or more sensor units; providing one or more signals of the one or more sensor units of the light emissions; comparing the one or more signals with one or more reference signals; determining, based on the comparing step, determined alkali emissions of the glass element; and controlling the one or more burner units based on the determined alkali emissions to adjust the alkali emissions of the glass element to a pre-given interval.

Method for controlling alkali emissions of a glass element during hot forming

Method for connecting an optical fiber to a GRIN lens, and a method for producing an optical filter module having an optical fiber and a GRIN lens, comprising arranging the optical fiber in contact with or in the immediate vicinity of the GRIN lens, directing a laser beam onto a part of the optical fiber and/or a part of the GRIN lens, the laser beam heating at least a part of the optical fiber and/or a part of the GRIN lens in such a way that a connection is formed between the optical fiber and the GRIN lens, and the optical axis of the laser beam being aligned oblique to the optical axis of the optical fiber, as well as optical filter modules produced in accordance with the method.

Method for connecting an optical fiber to a grin lens, and a method for producing optical filter modules and filter modules produced according to said method

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Gau-Algesheim, Germany

Uwe Nolte