找到參考資料了。 V`I4"}M1
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From Smith, Modern Lens Design, 2nd ED, page 4 |7|S>h^
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Are aspheric surfaces free of aberration? +RooU?Aq
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have ~|+ ~/
no spherical aberration if the object point is at one focal point and the t(z]4y
image is at the other. But if we depart from this condition we definitely 4IeCb?
do get spherical aberration. m!<HZvq?vf