A deformable mirror assembly is provided employing a pressure differential across the mirror element to flex the mirror into a configuration. The configuration is determined by an array of positioning members, each having a fixed back end and a movable front end. The invention employs long-stroke electromagnet...http://www.google.fr/patents/US6293680?utm_source=gb-gplus-shareBrevet US6293680 - Electromagnetically controlled deformable mirror