| over |
2011-01-01 16:21 |
找到參考資料了。 _t6 siB_u
YH) U nql
From Smith, Modern Lens Design, 2nd ED, page 4 v|VY5vN
$JqdI/s
Are aspheric surfaces free of aberration? )~_!u}+:(
mz1Xk ]nE
The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have -Hh$3U v
no spherical aberration if the object point is at one focal point and the %83PbH
image is at the other. But if we depart from this condition we definitely [4
g5 {eX
do get spherical aberration. Il2DZ5-
)
|
|