找到參考資料了。 paIjXaU1Mb
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From Smith, Modern Lens Design, 2nd ED, page 4 +s}&'V^
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Are aspheric surfaces free of aberration? i|1*bZ6'
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have 9Y.(xp &vw
no spherical aberration if the object point is at one focal point and the !y b06Z\f
image is at the other. But if we depart from this condition we definitely #]jl{K\f#X
do get spherical aberration. "Wg,]$IvU