Stewart platform kinematics and secondary mirror aberration control

Details Stewart platform kinematics and secondary mirror aberration control Stewart platform kinematics and secondary mirror aberration control

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spie.6273e.102s&link_type=abstract

Optomechanical Technologies for Astronomy. Edited by Atad-Ettedgui, Eli; Antebi, Joseph; Lemke, Dietrich. Proceedings of the S

Astronomy and Astrophysics

Astronomy

Scientific paper

This work deals with active correction of the aberrations in a telescope by moving the secondary mirror. A special attention is here dedicated to the case of a secondary mirror whose motions are controlled by a 6-6 Stewart Platform (generally called by astronomers simply "hexapod", even if this term is more general). The kinematics of the device is studied; an iterative algorithm to solve the non trivial forward kinematics problem is described.

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