Trihedron-shaped deformable reflectors.

摘要

A deformable trihedral reflector suitable for the back reflection of an electromagnetic incident beam comprising a tri- rectangular trihedron with three reflecting faces substantially orthogonal two by two, at least one part made of a piezoelectric material and means for activating said piezoelectric material such that it causes variation in the dihedral angles between the faces of the trihedron in the vicinity of the orthogonality and consequently in the divergence of the reflected beam.