1 October 1976 Spherical Lens Generating
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Abstract
Plummer Precision is dedicated to the proposition that closely controlled polished spherical surfaces are best accomplished by closely controlling sphericity, and depth of fracture in the initial diamond generation, and further, that the subsequent operations of fine grinding and polishing are merely enhance-ment of the generated surface. To this end we have designed and manufactured very rigid generators in which we employ direct driven spindles running on close tolerance bearings. A description of the basics of these machines will be revealed as well as an analysis of the glass surfaces which are produced by them.
John L. Plummer, "Spherical Lens Generating," Optical Engineering 15(5), 155398 (1 October 1976). https://doi.org/10.1117/12.7972009 . Submission:
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