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2011-01-01 16:21 |
找到參考資料了。 06Q9X!xD
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From Smith, Modern Lens Design, 2nd ED, page 4 +5 gX6V\
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Are aspheric surfaces free of aberration? 3Bvz& `\
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have E7hs+Mh
no spherical aberration if the object point is at one focal point and the >AY9 F|:
image is at the other. But if we depart from this condition we definitely hwQ|'^(@O
do get spherical aberration. Qr7|;l3
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