找到參考資料了。 Sp^9&^
'ul~7h;n
From Smith, Modern Lens Design, 2nd ED, page 4 -$WYj"
Nqrmp" ]
Are aspheric surfaces free of aberration? x
>^Si/t
<~n$1aA
The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have H8`(O"V
no spherical aberration if the object point is at one focal point and the $pFo Rv
image is at the other. But if we depart from this condition we definitely 7g(F#T?;'
do get spherical aberration. =<NljOR4`