Centre National Detudes Spatiales

Centre National De La Recherche Scientifique

Thales

Université´ D'aix-Marseille

Marie Laslandes

Emmanuel Hugot

Marc Ferrari

Arnaud Liotard

The invention relates to a device for correcting at least one optical aberration, of known evolution of an optical system, the device comprising: a deformable mirror () having a contour; means () for deforming the mirror; characterized in that the mirror () has a geometry selected such that the contour of the mirror () is defined from a composite function of said at least one aberration and in that the means () for deforming the mirror are adapted to apply a flexing moment on the edges of the mirror, the deformable mirror being concave or convex when it is deformed.

Correction device of at least one aberration of known evolution with deformable mirror

Optical devices can comprise a deformable mirror and a system for deforming said mirror. A deformation system comprises a first mechanical structure comprising a first surround, one or more electromechanical actuators attached to the first mechanical structure, a second mechanical structure comprising a substantially planar bottom and a second surround, both deformable, the bottom being attached to the first surround, the second surround being attached to the surround of the mirror, a rigid stud being attached to the bottom, substantially planar and centerd on the bottom, the electromechanical actuator or actuators exerting predetermined forces or bending moments on the stud so as to generate a particular distribution of the bending moments on the surround of the mirror, deforming it according to a geometrical form representative or of one or more predetermined geometrical aberrations.

Mirror comprising mechanical means for generating primary geometrical aberrations

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Marseilles, France

Marie Laslandes