| over |
2011-01-01 16:21 |
找到參考資料了。 P(k*SB|D
6LCtWX
From Smith, Modern Lens Design, 2nd ED, page 4 0<!9D):Bb
) Y)_T&O
Are aspheric surfaces free of aberration? 6)uBUM;i
pS+w4gW
The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have {L7 Pha
no spherical aberration if the object point is at one focal point and the K-TsSW$}
image is at the other. But if we depart from this condition we definitely x;u#ec4
do get spherical aberration. yO)xN=o^\
|
|