SIRONI, GIORGIAGIORGIASIRONICANESTRARI, RodolfoRodolfoCANESTRARICIVITANI, Marta MariaMarta MariaCIVITANI2023-02-032023-02-0320150037-8720http://hdl.handle.net/20.500.12386/33143A deflectometrical facility was developed at Italian National Institute for Astrophysics-OAB in the context of the ASTRI project to characterize free-form segments for Cherenkov optics. The test works as an inverse Ronchi test in combination with a ray-tracing code: the under-test surface is illuminated by a known light pattern and the pattern warped by local surface errors is observed. Knowing the geometry of the system it is possible to retrieve the surface normal vectors. This contribution presents the analysis of the upgrades and of the configuration modifications required to allow the use of deflectometry in the realization of optical components suitable for European Extremely Large Telescope and as a specific case to support the manufacturing of the Multi-conjugate Adaptive Optics Relay (MAORY) module. <P />STAMPAenConference paperhttp://sait.oat.ts.astro.it/MSAIt860315/index.htmlhttp://sait.oat.ts.astro.it/MSAIt860315/PDF/2015MmSAI..86..424S.pdf2015MmSAI..86..424SFIS/05 - ASTRONOMIA E ASTROFISICA