找到參考資料了。
LDNpEX~ =19]a From Smith, Modern Lens Design, 2nd ED, page 4
jfWIPN yG_#>3sD+% Are aspheric surfaces free of aberration?
|QY+vO7fxj LJ)3!Q/: The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have
BgRiJFa.d[ no spherical aberration if the object point is at one focal point and the
A@#dv2JzP image is at the other. But if we depart from this condition we definitely
?{[H+hzz0 do get spherical aberration.