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2011-01-01 16:21 |
找到參考資料了。 C$5v:Fk
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From Smith, Modern Lens Design, 2nd ED, page 4 P k,^q8;
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Are aspheric surfaces free of aberration? j04Q3d
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have
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no spherical aberration if the object point is at one focal point and the D Lu]d$G
image is at the other. But if we depart from this condition we definitely /#X O!%=7
do get spherical aberration. K+7xjFoDIR
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