Figuring a Fast Meniscus Mirror
In traditional ATM stages, figuring a sphere into a paraboloid is the last hurdle before having a completed mirror, and that hurdle is really just a speed bump. It is important, to be sure, but it usually only takes a modest amount of time to complete, and is well described online and in print. Figuring a fast meniscus mirror, on the other hand, is a completely different beast, and this post will discuss the issues related to it in depth.
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