Modeling and Control of a Deformable Mirror

[+] Author and Article Information
S. E. Winters

Department of Mechanical Engineering, Lawrence Livermore National Laboratory, Livermore, CA 94550

J. H. Chung

Department of Mechanical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030

S. A. Velinsky

Department of Mechanical and Aeronautical Engineering, University of California at Davis, Davis, CA 95616

J. Dyn. Sys., Meas., Control 124(2), 297-302 (May 10, 2002) (6 pages) doi:10.1115/1.1470175 History: Received July 01, 2000; Online May 10, 2002
Copyright © 2002 by ASME
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National Ignition Facility prototype deformable mirror
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Schematic of deformable mirror including actuators, clear aperture, and projected lenslets
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Deformable mirror-interferometer layout used for experiments
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(a) Difference (in mm) between Finite Element model and experimental data for actuator #20; (b) difference (in mm) between Gaussian model and experimental data for actuator #20
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(a) Correction of a piston aberration with Finite Element model based control-error in mm; (b) correction of a piston aberration with Gaussian model based control-error in mm




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