找到參考資料了。 @=w<B4L
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From Smith, Modern Lens Design, 2nd ED, page 4 |CgnCUv+
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Are aspheric surfaces free of aberration? eLwTaW !C
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have i$^)UZJ&0
no spherical aberration if the object point is at one focal point and the Z'pQ^MO
image is at the other. But if we depart from this condition we definitely v]2S`ffP
do get spherical aberration. ZaFb*XRgS