System for actuating movable elements with dynamically compensated and opposed relative movements

摘要

The system has a rigid structure i.e. frame, comprising a linear actuator (19) i.e. piezoelectric actuator, linked to a motion transmission device with four rigid arms (26-29). The arms are articulated at ends of the arms and form a lozenge. Two opposite vertices of the lozenge are linked to corresponding mobile elements i.e. optical plates (16, 17) by first pivots. Another two opposite vertices of the lozenge have a single translational degree of freedom. The arms respectively link second pivots (22-25) for forming sides of the lozenge.