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2011-01-01 16:21 |
找到參考資料了。 A
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9+MW13?
From Smith, Modern Lens Design, 2nd ED, page 4 _YG@P1
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Are aspheric surfaces free of aberration? g%tUk M
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have unc6 V%
no spherical aberration if the object point is at one focal point and the tvf5b8(Y-
image is at the other. But if we depart from this condition we definitely w&f>VB~,1
do get spherical aberration. ZB |s/
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