找到參考資料了。 `.6Jgfu
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From Smith, Modern Lens Design, 2nd ED, page 4 nfvs"B;
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Are aspheric surfaces free of aberration? I|[aa$G
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have UE\@7
no spherical aberration if the object point is at one focal point and the ZsPBs4<p
image is at the other. But if we depart from this condition we definitely @p2dXJeR<
do get spherical aberration. OEGAwP?F