找到參考資料了。 i|5 K4Puu
A9[ELD>p
From Smith, Modern Lens Design, 2nd ED, page 4 =gb.%a{R
U`es
n?m!
Are aspheric surfaces free of aberration? v]tbs)x;h
<-:gaA`KM
The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have d?)C} 2
no spherical aberration if the object point is at one focal point and the ?6gC;B
image is at the other. But if we depart from this condition we definitely (bk~,n_
do get spherical aberration. #Cda8)jl(