International Workshop on Ultraprecision Manufacturing of Aspheres and Freeforms

Workshop in Jena from September 14 to 15


Under the title "Ultra Precision Manufacturing of Aspheres and Freeforms" the Fraunhofer Institute for Applied Optics and Precision Engineering IOF and OptoNet e.V. invite again to their international workshop in Jena, Germany from September 14 to 15, 2022.

It is already the 10th time that Fraunhofer IOF and OptoNet e.V. invite an international expert community to Jena to jointly discuss the latest technologies and developments in the fields of freeforms and aspheres. In its anniversary year, the event will focus on scientific freeform optics projects, manufacturing technologies, freeform systems and applications, and the characterization of freeform surfaces.

In addition to professional exchange during lectures and discussions, the event also offers the opportunity for extensive networking at an evening event. Furthermore, the workshop will be accompanied by an exhibition of the latest technological highlights. This year's exhibitors include: AMETEK GmbH BU Precitech, AMETEK GmbH BU Taylor Hobson, Bühler Alzenau GmbH, DUTCH UNITED INSTRUMENTS, Mahr GmbH, micro resist technology GmbH - Moore Nanotechnology Systems, RSP Technology, SCHNEIDER GmbH & Co. KG as well as son-x GmbH, and Trionplas Technologies GmbH.

Program overview

Wednesday, September 14, 2022

11:30 a.m.

Registration & Welcome Snack

12:00 p.m.

Welcoming, Retrospect & Protagonists

Andreas Tünnermann (Fraunhofer IOF), Germany
Anke Siegmeier (OptoNet e.V.), Germany

12:30 p.m.

KEYNOTE | Grating Technology for Space Instruments at IOF: Status and Prospects

Uwe Zeitner (Fraunhofer IOF), Germany

01:00 p.m.

PART 1 | Scientific Freeform Optics Projects

Research highlights from CeFO, the Center for Freeform Optics
Jannick Rolland (UNC Charlotte Center for Freeform Optics), USA

Free your mind – Form your optics: The fo+ Alliance
Sven Kiontke (asphericon GmbH), Germany

The new era for free-form micro-optics: story of a unique pilot line
Jessica van Heck (PHABULOuS Pilot Line Association), Switzerland

02:30 p.m.

Exhibition & Coffee Break

03:00 p.m.

PART 2 | Manufacturing Technologies

Ultra precision polishing asphere and freeform optics by robot ccp
Xuejun Zhang (Changchun Institute of Optics (CIOMP)), China

Manufacturing blazed metallic freeform gratings with commercial machines
Cyril Bourgenot, Christopher Graham, John Girkin (Precision Optics Laboratory, University of Durham), UK

Manufacturing of Functional Surfaces by Diamond Machining
Oltmann Riemer, Lars Schönemann (Leibniz-Institut für Werkstofforientierte Technologien IWT), Germany

Enabling New Materials in Ultra Precision Machining Through Ultrasonic Assistance
Benjamin Bulla (son‑x GmbH), Germany

Form Error Compensation of Freeform Surfaces Machined by Diamond Turning
Christopher Morgan (Moore Nanotechnology Systems, LLC), USA

Freeform Optics Fabrication with Atmospheric Plasmajets
Hendrik Paetzelt (Trionplas Technologies GmbH), Germany

High productive machining of large scale free form mirrors
Christian Wenzel (Innolite GmbH), Germany

05:30 p.m.

Exhibition & Coffee Break

07:30 p.m.

Evening Event
Andreas Tünnermann (Fraunhofer IOF), Germany
Keynote address: Jeff Roblee (AMETEK Precitech Inc.), USA


Thursday, September 15, 2022

08:00 a.m.


08:30 a.m.

PART 3 | Freeform Systems and Applications

Using Aspherical Optics: SENTINEL‑4 A Geostationary Imaging UVN Spectrometer for Air Quality Monitoring
Giorgio Bagnasco (ESA/ESTEC  Noordwijk), The Netherlands

Satellite-based Quantum Communication: Applications of High-Performance Optical Systems
Fabian Steinlechner (Fraunhofer IOF), Germany

The Hyperspectral Imaging Spectrometer DESIS on board of the International Space Station
Ingo Walter (Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institut für Optische Sensorsysteme), Germany

Additive Manufacturing of Metal Optical Systems for Space
Nils Heidler, Enrico Hilpert (Fraunhofer IOF), Germany

10:15 a.m.

Exhibition & Coffee Break

10:50 a.m.

PART 4 | Part IV · Characterization of Freeform Surfaces

Advances in MRF and SSI Technologies enable new Freeform Manufacturing Capabilities
Jean Pierre Lormeau (QED Technologies), USA

Inline Metrology of Freeform Surfaces
Ruth Mackey, David Mackey (mBryonics Ltd), Ireland

Fast and Accurate Measurement Solution for Aspherical and Freeform Optics
Rens Henselmans (Dutch United Instruments), The Netherlands

Data Processing for Freeform Production and Metrology
Andreas Beutler (Mahr GmbH), Germany

Light scattering based roughness and defect characterization of freeform surface
Christian Mühlig (Fraunhofer IOF), Germany

01:00 p.m.

Anke Siegmeier (OptoNet e.V.), Germany

01:15 p.m.

Exhibition & Snack Buffet