Paper 13099-89
Opto-mechanical analysis framework for the tolerancing of the METIS CFO
Abstract
The Mid-infrared ELT Imager and Spectrograph (METIS) is one of the first-light scientific instruments for the ELT. The common fore optics (CFO) sits at the heart of METIS, conditioning the beam and distributing the light across the wavefront sensor and science channels. To ensure it can reach its science goals, rigorous analysis of manufacturing and alignment tolerances is essential. For the CFO, an end-to-end tolerancing system was developed, integrating component level analyses, FEA results, as-built data to continuously optimize system performance during the design phase, as well as manufacturing and assembly phase.
Presenter
Dennis Dolkens
ASTRON (Netherlands)
Dennis Dolkens is an optical engineer working at the NOVA Optical Infrared Instrumentation Group. He specializes in the end-to-end modelling of complex opto-mechanical systems and is currently the optical system lead for the METIS instrument.