Open AccessUse of the ‘Precessions’™ process for prepolishing and correcting 2D & 2½D form
Author(s) -
David D. Walker,
R. R. Freeman,
R. Morton,
Gerry McCavana,
Anthony Beaucamp
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.011787
Subject(s) - polishing , process (computing) , optics , computer science , state (computer science) , physics , engineering drawing , mechanical engineering , algorithm , engineering , operating system
The Precessions process polishes complex surfaces from the ground state preserving the ground-in form, and subsequently rectifies measured form errors. Our first paper introduced the technology and focused on the novel tooling. In this paper we describe the unique CNC machine tools and how they operate in polishing and correcting form. Experimental results demonstrate both the '2D' and '2(1/2)D' form-correction modes, as applied to aspheres with rotationally-symmetric target-form.