24 May 2006 Stewart platform kinematics and secondary mirror aberration control
Author Affiliations +
Proceedings Volume 6273, Optomechanical Technologies for Astronomy; 62733B (2006); doi: 10.1117/12.670537
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States
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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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12 PAGES


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KEYWORDS
Monochromatic aberrations

Kinematics

Active optics

Mirrors

Telescopes

Lithium

Image analysis

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