Deformable Mirrors With Bimorph Actuators

N. P. Albertinetti; R. E. Aldrich; J. H. Everson

doi:10.1117/12.957290

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11 July 1979 Deformable Mirrors With Bimorph Actuators

N. P. Albertinetti, R. E. Aldrich, J. H. Everson

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Proceedings Volume 0179, Adaptive Optical Components II; (1979) https://doi.org/10.1117/12.957290
Event: Technical Symposium East, 1979, Washington, D.C., United States

Abstract

Discrete, bimorph actuators have been designed at Itek for a deformable mirror, which has a dilatation sensitivity of 6 microns at 1.5 KV. The bimorph actuators, mechanically designed to accommodate flexibility while bending, provide surface deformation, which depends upon the actuator length and faceplate stiffness. Mechanical resonances have been measured at frequencies well above bandwidths required for wavefront correction. Life test data indicates that less than λ/5 PP wavefront change occurred after exercising the bimorph device for 100 hours at 6 microns.

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N. P. Albertinetti, R. E. Aldrich, and J. H. Everson "Deformable Mirrors With Bimorph Actuators", Proc. SPIE 0179, Adaptive Optical Components II, (11 July 1979); https://doi.org/10.1117/12.957290

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