Adaptive mirrors

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Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982izssr..46.1925d&link_type=abstract

(Vsesoiuznaia Konferentsiia po Optike Lazerov, 3rd, Leningrad, USSR, Jan. 4-8, 1982.) Akademiia Nauk SSSR, Izvestiia, Seriia Fiz

Physics

Optics

Adaptive Optics, Mirrors, Telescopes, Design Analysis, Piezoelectric Ceramics, Pupil Size, Wave Front Deformation

Scientific paper

Initial research on the construction of a telescope with an adaptive primary mirror is examined in view of the potential of adaptive mirrors for allowing an increase in the size of the entrance pupil. A mathematical procedure for evaluating the effects of wave front deformations on image quality is used as the theoretical basis for the preparation and alignment of the two types of adaptive mirrors in current use - flexible and compound. An experimental seven-element compound telescope mirror with hexagonal, spherical mirror elements designed in accordance with theoretical principles is then presented, and results of evaluations of the amplitude and phase summation characteristics of the mirror when started from misalignment using membrane-type, stepwise and combination electromechanical-piezoceramic actuators are reported.

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