Active optics for high-dynamic variable curvature mirrors.
Variable curvature mirrors of large amplitude are designed by using finite element analysis. The specific case studied reaches at least a 800 mum sag with an optical quality better than lambda/5 over a 120 mm clear aperture. We highlight the geometrical nonlinearity and the plasticity effect.
Hugot
Emmanuel
E
Laboratoire d'Astrophysique de Marseille, Université de Provence Aix-Marseille I, CNRS/INSU 38, rue F. Joliot Curie, 13388 Marseille Cedex 13, France. emmanuel.hugot@oamp.fr
Ferrari
Marc
M
Lemaitre
Gérard R
GR
Madec
Fabrice
F
Vives
Sébastien
S
Chardin
Elodie
E
Le Mignant
David
D
Cuby
Jean-Gabriel
JG