The Thirty Meter Telescope (TMT) project is a partnership between ACURA, AURA, Caltech, and the University of California. The design calls for a 3.6 m diameter secondary mirror and an elliptical tertiary mirror measuring more than 4 m along its major axis. Each mirror will weigh more than two metric tons and must be articulated to compensate for deformation of the telescope structure. The support and control of these "smaller optics" pose significant challenges for
the designers. We present conceptual designs for active and passive figure control and articulation of these optics.
This paper describes the preliminary optomechanical design and analysis of the Gemini Adaptive Optics Bench being built by EOS Technologies, Inc. The overall optical arrangement is described, the optical tolerances are discussed, and an overview of the optomechanical packaging is provided. Emphasis is placed on integrated modeling of the optomechanical system to predict the effect of mechanical deformation on optical performance
This paper describes a random vibration, finite element analysis (FEA), performed on the Gemini Laser Launch Telescope (LLT) using ANSYS. A highly detailed model, originally created for static analysis, served as a baseline model but required extensive simplification to be used for random vibration analysis. A reduced spectrum PSD was also required. This paper describes the simplification process and summarizes the results of the analysis.