Paper 14145-42
Paper 14145-42
Design, performances, and qualification of the optics of the Venus Spectrometer Instrument (VEM)
7 July 2026 • 13:20 - 13:40 CEST | Room B4-M3
Abstract
The concept of the optical objective of the VEM instrument (Venus Mapper under DLR responsibility for VERITAS and EnVision missions) will be shown with the first results of its measured performances.
Academic partners (LIRA and DLR) are associated with industrial partners (Bertin-Winlight, Cilas and MECANO-ID) with the CNES support.
Robust design with 3 lenses and filter all integrated in a mechanical barrel has successfully passed the first review.
The mechanical models and FEA results will be presented.
The whole qualification process and the facilities developed at LIRA will be exposed.
Presenter
Lab. d’Instrumentation et de Recherche en Astrophysique (France)
I have worked on various instruments since the late 1990s, on the design and integration of scientific instruments, for ground telescope and space instrumentation.
I have been responsible for the scientific camera of COROT (space), on the development of the Adaptive Optics test-bed of SPHERE (VLT), participating as system engineer for ESA-M5 proposal (PLATO and ARIEL) and project manager of the Adaptive Optics sub-system of the first light instrument of the ELT (MICADO).
He has also participated to R&D projects such as PERSEE for the development of an IR
camera (formation flight demonstrator) and CANARY for the development and integration of a
new wave-front surface analyser. I have been the Technical Director of LESIA (Laboratoire d’Etude
et d’Instrumentation en Astrophysique) for 6 years.