找到參考資料了。 -[i9a:eRM
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From Smith, Modern Lens Design, 2nd ED, page 4 xy46].x-
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Are aspheric surfaces free of aberration? epj]n=/}[
jVL<7@_*
The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have 5+rYk|*D+k
no spherical aberration if the object point is at one focal point and the 0#F3@/1h
image is at the other. But if we depart from this condition we definitely pSkP8'
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do get spherical aberration. K`* 8*k{