找到參考資料了。 (AM,4)lW,
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From Smith, Modern Lens Design, 2nd ED, page 4 Z0F>"Z_qn
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Are aspheric surfaces free of aberration? WnJLX ^;
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have f1]AfH#
no spherical aberration if the object point is at one focal point and the XY+aunLf
image is at the other. But if we depart from this condition we definitely N}l]Ilm$34
do get spherical aberration. xPfnyAo?%z