5 January 1984 A Mirror Mount For Cryogenic Environments
Author Affiliations +
Proceedings Volume 0450, Structural Mechanics of Optical Systems I; (1984) https://doi.org/10.1117/12.939264
Event: 1983 Cambridge Symposium, 1983, Cambridge, United States
The finite element method was used to study the effect of mount-induced aberrations on the optical surface of a lightweight double arch mirror subjected to cryogenic temperatures. The mount design was controlled by the requirements imposed on the optical surface quality and stress levels. The finite element analysis was used to define the feasible range of mount parameters and the selection of a design within the feasible region. The final design consisted of three spring-loaded Invar T-clamps that uniquely define the location of the mirror, three radially compliant parallel spring guides that remove the effect of radial contraction of structure in cryogenic temperatures, and a flexible baseplate that was used to reduce the effect of temperature-induced baseplate tilt errors. The experimental results from the applica-tion of this system to an existing 20-inch fused silica double arch mirror are shown, and possible improvements in system performance are discussed.
© (1984) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Bijan Iraninejad, Bijan Iraninejad, Daniel Vukobratovich, Daniel Vukobratovich, Ralph M Richard, Ralph M Richard, Ramsey K Melugin, Ramsey K Melugin, } "A Mirror Mount For Cryogenic Environments", Proc. SPIE 0450, Structural Mechanics of Optical Systems I, (5 January 1984); doi: 10.1117/12.939264; https://doi.org/10.1117/12.939264


3D-additive manufactured optical mount
Proceedings of SPIE (September 01 2015)
Large aluminium convex mirror for the cryo optical test of...
Proceedings of SPIE (November 20 2017)
Optomechanical design of TMT NFIRAOS Subsystems at INO
Proceedings of SPIE (August 22 2017)
Thermal stress in a glass metal bond with PR 1578...
Proceedings of SPIE (September 30 1990)
A vector analysis of optical surface deformations
Proceedings of SPIE (October 21 2004)
CFRP structure for the LBT instrument LINC-NIRVANA
Proceedings of SPIE (July 05 2006)

Back to Top