Suche nach „[E.] [Langenbach]“ hat 5 Publikationen gefunden

DigitalNachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenIPH Teisnach

Beitrag (Sammelband oder Tagungsband)

M. Doetz, O. Dambon, Christian Vogt, Rolf Rascher, E. Langenbach, O. Fähnle

Enlarging process window of ductile mode machining of WC molds

Proceedings of EOSAM 2018 (European Optical Society Biennial Meeting; October 2018; Delft, The Netherlands): Optical System Design, Tolerancing, and Fabrication

2018

DigitalNachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenIPH Teisnach

Vortrag

Rolf Rascher, Christian Vogt, O. Fähnle, E. Langenbach

Closed-loop laser polishing of glass

LaP 2018 - 3rd Conference on Laser Polishing, Aachen

2018

NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenIPH Teisnach

Beitrag (Sammelband oder Tagungsband)

Christian Vogt, O. Fähnle, E. Langenbach, Rolf Rascher

In situ monitoring of laser polishing

DGaO-Proceedings 2018

2018

NachhaltigIPH Teisnach

Vortrag

Christian Vogt, O. Fähnle, E. Langenbach, Rolf Rascher

In situ laser monitoring of laser polishing

119. Jahrestagung der Deutschen Gesellschaft für angewandte Optik (DGaO), Technische Hochschule Aalen

2018

Abstract anzeigen

A novel fabrication parameter controlling method for laser polishing is presented, measuring within the footprint the smoothening process in real time. Recently, a new method for in situ measuring level of surface roughness has been developed [1] where a HeNe laser beam is being reflected from within the sample at the surface under test and the intensity of its reflected beam is being monitored.In this paper we report on an experimental study where this method has been applied to laser polishing. The internal local surface area under test is chosen to be located at the very spot where the laser polishing footprint is located from the outside of the sample melting its surface locally. Because fused silica is not transparent at the operating CO2 laser wavelength, the intensity of the reflected beam can be monitored enabling an in situ control of the laser polishing process. Consequently, the optimum dwell time can be determined, a footprint needs to stay at a certain point before moving further enabling a more stable and cost optimized polishing. [1] O.Fähnle,“In process monitoring of optics fabrication”, SPIEconference “PrecisionOptics Manufacturing”2017

Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen

Beitrag (Sammelband oder Tagungsband)

O. Fähnle, E. Langenbach, F. Frost, A. Schindler, Heiko Biskup, Johannes Liebl, Christine Wünsche, Rolf Rascher

Generation and field testing of roughness reference samples for industrial testing of surface roughness levels below 0.5nm Sq

Proceedings of EOSAM 2014 (European Optical Society Annual Meeting) [Sep 15-19 2014, Berlin, Germany]

2014