AdvisorBurge, James H.
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PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
AbstractConventional methods of aspheric surface production utilize sub-diameter rigid tooling. The spherical tool has a slight misfit with respect to the aspheric optic being produced. This misfit leads to long working times due to minimal surface contact. It also leads to high frequency zones due to the mechanics of grinding and polishing. To remedy both of these problems, a non-rigid tool is employed. A thin membrane (∼1 mm) of aluminum or plastic is machined or pressed to the correct radius and grinding/polishing pads are glued to the lap. These semi-flexible laps make better contact with the work surface, thus reducing production time. They also make much smoother surfaces than does conventional tooling. This thesis details the theoretical analysis and simulations as well as experimental results and conclusions. The experimental results include: static deflection testing, removal rate testing as a function of spatial frequency, and production data from two fabrication projects.
Degree ProgramGraduate College