Radius of curvature metrology for segmented mirrors

Dave Baiocchi; James H. Burge

doi:10.1117/12.405241

24 October 2000 Radius of curvature metrology for segmented mirrors

Dave Baiocchi, James H. Burge

Proceedings Volume 4093, Current Developments in Lens Design and Optical Systems Engineering; (2000) https://doi.org/10.1117/12.405241
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Future space and ground telescopes will have apertures that are increasingly larger in size. The primary mirrors for these telescopes will be so large that they cannot be fabricated, transported, and/or launched as a single entity. One solution is to build a large mirror out of smaller segments. The biggest challenge in fabricating segmented mirrors is matching the individual pieces so they form a single, continuous surface. This requirement means that the radii of curvature must all match. We present a technique for matching the relative radii of curvature for segmented mirrors, and we include an error analysis of this method.

Citation Download Citation

Dave Baiocchi and James H. Burge "Radius of curvature metrology for segmented mirrors", Proc. SPIE 4093, Current Developments in Lens Design and Optical Systems Engineering, (24 October 2000); https://doi.org/10.1117/12.405241

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