24 May 2006 Stewart platform kinematics and secondary mirror aberration control
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Abstract
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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P. Schipani, L. Marty, "Stewart platform kinematics and secondary mirror aberration control", Proc. SPIE 6273, Optomechanical Technologies for Astronomy, 62733B (24 May 2006); doi: 10.1117/12.670537; https://doi.org/10.1117/12.670537
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