55 ION SLOT：Why not vacuum-deform a spherical mirror while grinding?

55 ion slot   55wealth Page 1 of 2 - Why not vacuum-deform a spherical mirror while grinding? - posted in ATM, Optics and DIY Forum: I know Schmidt corrector plates are made at a commercial scale by sucking glass down over a vacuum, then doing the shaping, then removing the plate from the vacuum surface. A thin plate deformed by having a uniform force applied to it produces a curve that is described by a fourth

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