A BIMORPH MIRROR WITH TWO PIEZOELECTRIC LAYERS SEPARATED BY A CENTRAL CORE OF SEMIRIGID MATERIAL

摘要

The invention relates to a bimorph mirror presenting first and second layers (1, 2) of piezoelectric ceramic together with at least one electrode enabling at least one curvature of the mirror to be varied as a function of at least one electrical voltage applied to the piezoelectric ceramics. The mirror of the invention is characterized in that the first and second layers (1, 2) are separated by a central core (5) of material such as glass or silica, forming a semirigid beam.