Current fabrication techniques for ULE and fused silica lightweight mirrors

Thomas W. Hobbs; Mary J. Edwards; Randy R. VanBrocklin

doi:10.1117/12.506104

12 December 2003 Current fabrication techniques for ULE and fused silica lightweight mirrors

Thomas W. Hobbs, Mary J. Edwards, Randy R. VanBrocklin

Proceedings Volume 5179, Optical Materials and Structures Technologies; (2003) https://doi.org/10.1117/12.506104
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

Fabrication of lightweight mirrors from low expansion glasses can be achieved using several techniques. Lightweighting can be obtained through fabrication of fusion-bonded cores, abrasive waterjetting (AWJ) technology and traditional fixed abrasive grinding. Lightweight cores can then be bonded to mirror plates using high temperature fusion, low temperature fusion, and frit bonding processes. Each mirror fabrication approach offers its own advantages and disadvantages in terms of lightweighting, cost and design flexibility. Each of these factors is discussed, along with Corning's proven size capability for each.

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Thomas W. Hobbs, Mary J. Edwards, and Randy R. VanBrocklin "Current fabrication techniques for ULE and fused silica lightweight mirrors", Proc. SPIE 5179, Optical Materials and Structures Technologies, (12 December 2003); https://doi.org/10.1117/12.506104

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