In manufacturing an aspheric lens or mirror, it is often convenient to generate a spherical surface as a starting point. The radius of the sphere should be such that the volume of glass which must be removed to achieve the final aspheric is a minimum. Equations for this best-fit sphere are developed and arranged in a form well suited for computer programming.
© 1966 Optical Society of America
Original Manuscript: May 28, 1965
Published: February 1, 1966
Theodore W. J. Unti, "Best-Fit Sphere Approximation to a General Aspheric Surface," Appl. Opt. 5, 319-321 (1966)
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