Focussing Lens without Spherical Aberration

From: Narasimham (mathma18_at_hotmail.com)
Date: 12/29/04


Date: 28 Dec 2004 16:48:45 -0800

What shape does a plano-convex or bi-convex lens have to bring parallel
monochromatic rays aplanatically to a focus without spherical
aberration? Please give net link. Thanks in advance.



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