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2011-01-01 16:21 |
找到參考資料了。 <$.KCLP
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From Smith, Modern Lens Design, 2nd ED, page 4 aMTY{
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Are aspheric surfaces free of aberration? }\u~He%
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have gb:Cc,F, %
no spherical aberration if the object point is at one focal point and the K.
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image is at the other. But if we depart from this condition we definitely [ hj|8)
do get spherical aberration. \3q{E",\>@
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