找到參考資料了。 4-?zW
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From Smith, Modern Lens Design, 2nd ED, page 4 8shx7"
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Are aspheric surfaces free of aberration? lhPxMMS`j
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have N /zP!%L
no spherical aberration if the object point is at one focal point and the sp&gw XPG
image is at the other. But if we depart from this condition we definitely
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do get spherical aberration. Kk).KgR