Roller chain supports for large optics

Daniel Vukobratovich; Ralph M. Richard

doi:10.1117/12.47749

1 March 1991 Roller chain supports for large optics

Daniel Vukobratovich, Ralph M. Richard

Proceedings Volume 1396, Applications of Optical Engineering: Proceedings of OE/Midwest '90; (1991) https://doi.org/10.1117/12.47749
Event: Applications of Optical Engineering: Proceedings of OE/Midwest '90, 1990, Rosemont, IL, United States

Abstract

Henry Draper described the use of flexible bands to minimize optical surface deflection of mirrors mounted in the optical axis horizontal position in 1864. Despite this historical background the theoretical basis for horizontal band support was not developed until quite recently. Use of finite element analysis has led to a better understanding of the performance of horizontal band supports. Analytical modeling of horizontal band supports has resulted in improvements in design. In particular the use of roller chains as a horizontal support significantly reduces the deflection of an axis horizontal large mirror. Providing that certain design precautions discussed in this paper are taken roller chains provide a relatively simple and low cost support. A number of successful roller chain supports for optics from 0. 68 m to 1 . 8 m in diameter have been built based on the results of the above analytical models. 2.

Citation Download Citation

Daniel Vukobratovich and Ralph M. Richard "Roller chain supports for large optics", Proc. SPIE 1396, Applications of Optical Engineering: Proceedings of OE/Midwest '90, (1 March 1991); https://doi.org/10.1117/12.47749

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