找到參考資料了。 Lc~m`=B
HwFg;r
From Smith, Modern Lens Design, 2nd ED, page 4 5.^pD9 [mT
[h-6;.e
Are aspheric surfaces free of aberration? + nR("Il
a[hF2/*
The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have F/2cQ.u2
no spherical aberration if the object point is at one focal point and the <4TI;yy6?
image is at the other. But if we depart from this condition we definitely XEiVs\) G
do get spherical aberration. "[ LUv5