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Conferences > CLEOS > 1976 > THF > THF5

Figure sensor control of a deformable mirror

A. W. Angelbeck, G. R. Wisner, A. F. Greiner, E. D. Hasselmark, R. H. Freeman, and H. C. Reynolds

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Abstract

Figure sensor control of a deformable mirror has been developed which allows for closed-loop control of an arbitrary figure on the mirror. Figure sensing is implemented through the use of an optical heterodyne-type interferometer which monitors the optical figure (contour) of the mirror. Error signals are generated in a dedicated minicomputer by comparing the measured contour and the desired contour.

© 1976 Optical Society of America

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