找到參考資料了。 !l
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From Smith, Modern Lens Design, 2nd ED, page 4 dxs5woP
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Are aspheric surfaces free of aberration? <!sLfz?
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have wSjDa.?'
no spherical aberration if the object point is at one focal point and the e3 v^j$
image is at the other. But if we depart from this condition we definitely "u^Erj# /
do get spherical aberration. $NVVurXa