15 July 2016 Detailed design of a deployable tertiary mirror for the Keck I telescope
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Motivated by the ever increasing pursuit of science with the transient sky (dubbed Time Domain Astronomy or TDA), we are fabricating and will commission a new deployable tertiary mirror for the Keck I telescope (K1DM3) at the W.M. Keck Observatory. This paper presents the detailed design of K1DM3 with emphasis on the opto- mechanics. This project has presented several design challenges. Foremost are the competing requirements to avoid vignetting the light path when retracted against a sufficiently rigid system for high-precision and repeatable pointing. The design utilizes an actuated swing arm to retract the mirror or deploy it into a kinematic coupling. The K1DM3 project has also required the design and development of custom connections to provide power, communications, and compressed air to the system. This NSF-MRI funded project is planned to be commissioned in Spring 2017.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Xavier Prochaska, J. Xavier Prochaska, Chris Ratliff, Chris Ratliff, Jerry Cabak, Jerry Cabak, Alex Tripsas, Alex Tripsas, Sean Adkins, Sean Adkins, Michael Bolte, Michael Bolte, David Cowley, David Cowley, Mike Dahler, Mike Dahler, Will Deich, Will Deich, Hilton Lewis, Hilton Lewis, Jerry Nelson, Jerry Nelson, Sam Park, Sam Park, Michael Peck, Michael Peck, Drew Phillips, Drew Phillips, Mike Pollard, Mike Pollard, Bill Randolph, Bill Randolph, Dale Sandford, Dale Sandford, Jim Ward, Jim Ward, Truman Wold, Truman Wold, "Detailed design of a deployable tertiary mirror for the Keck I telescope", Proc. SPIE 9910, Observatory Operations: Strategies, Processes, and Systems VI, 99102I (15 July 2016); doi: 10.1117/12.2233237; https://doi.org/10.1117/12.2233237

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