Optimum Shapes For Lightweighted Mirrors
- 4 November 1982
- proceedings article
- Published by SPIE-Intl Soc Optical Eng
- p. 419-423
- https://doi.org/10.1117/12.933549
Abstract
Two types of monolithic lightweight mirrors with arched backs are discussed: the center-supported single arch and the ring-supported double arch. The theoretical deformations of a 20-in.-diameter double arch mirror are compared with the actual deformations. A mirror of this size weighs about 50% less than an equivalent conventional mirror. The double arch design may be scaled up to 144 in. where the mirror weighs less than 40% of the eauivalent conventional mirror. Further weight savings are possible due to the reduced size and simplicity of the support required by the double arch mirror design.Keywords
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