Abstract
To generate a spherical mirror in aluminum, with a single point diamond as the cutting tool, the mirror was rotated by a highly precise air spindle driven by a variable speed dc motor. Cutting time was 2 h to a spherical accuracy of one wave. This cross-axis method of generating by tilted spindle will make flats and spheres only; for such surfaces it is an excellent method that requires no numerical control.
© 1979 Optical Society of America
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Appl. Opt. 18(21) 3535-3537 (1979)
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