找到參考資料了。 [M^ur%H
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From Smith, Modern Lens Design, 2nd ED, page 4 F-^#EkEGe
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Are aspheric surfaces free of aberration? O_PKS$sz{
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have 8:BPXdiK
no spherical aberration if the object point is at one focal point and the 5UFR^\e
image is at the other. But if we depart from this condition we definitely I+) Acy;
do get spherical aberration. (Ea)`'/