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2011-01-01 16:21 |
找到參考資料了。 $zYo~5M?i-
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From Smith, Modern Lens Design, 2nd ED, page 4 z57| 9$h}w
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Are aspheric surfaces free of aberration? f<}>*xH/k
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have
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no spherical aberration if the object point is at one focal point and the MaQ`7U5 |e
image is at the other. But if we depart from this condition we definitely jI~GRk
do get spherical aberration. ("5Eed
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