Adaptive Optics for Industry and Medicine: Proceedings of by Christopher Dainty

By Christopher Dainty

This lawsuits quantity provides the very most recent advancements in non-astronomical adaptive optics. This foreign workshop, the 6th in a biennial sequence, was once the biggest ever held and boasted major involvement by means of undefined. Adaptive optics is at the verge of getting used in lots of items; certainly, at this assembly, using adaptive optics in DVD gamers used to be disclosed for the 1st time.

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The mirror is capable of closed loop bandwidth in excess of several hundred Hz. Measurements of the device influence functions are presented along with results of closed loop real time control performance measurements. 1. ~ntroduction Although fabrication and experimentation with membrane mirrors has taken place for several years, it is only recently that the manufacturing process to produce micro-machined devices has evolved enough to meet the needs of the adaptive optics community. ’’2 Typically these devices consist of a silicon chip mounted over an array of electrostatic pads for actuation.

D. Dayton, S . Restaino, J. , Opts. , 176, (2000). D. Dayton, J. Gonglewski ,SPIE Vol. 3760 (1999). D. Dayton, 3. Gonglewski, SPIE Vol. 3866 (1999). R. Noll, JOSA 66, 3 (1976). ELECTROSTATIC MICRO-DEFORMABLE MIRROR BASED ON POLYMER MATERIALS FREDERIC ZAMKOTSIAN, PATRICK LANZONI Laboratoire dxstrophysique de Marseille, 2, place Le Verrier, 13248 Marseille Cedex 4, France VERONIQUE CONEDERA, NORBERT FABRE LAAS-CNRS, 7 avenue du colonel Roche, 31077 Toulouse cedex, France MOEMS-based electrostatic micro-deformable mirrors (MDM) are promising for future AO systems.

The electrostatic pads for the mirror described here were segmented annular regions. 2 shows the actuator pattern on the deformable mirror. 25 mm. 3 mm, which leaves the outer region of the membrane to provide some degree of freedom for the edge of the actuated region. Although AOS has demonstrated up to 40-pm of throw from these polymer membrane deformable mirrors, this mirror was created using a large gap between the membrane and the electrostatic pads to avoid electrostatic snap-down. The electronics used in this experiment had a maximum voltage of 280V, which was 93% of the maximum design value.

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