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2011-01-01 16:21 |
找到參考資料了。 ;au*V5a%
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From Smith, Modern Lens Design, 2nd ED, page 4 e_.Gw"/Yl
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Are aspheric surfaces free of aberration? L Y 0] l$
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have ve Tx, \6@
no spherical aberration if the object point is at one focal point and the m^V5*JIh
image is at the other. But if we depart from this condition we definitely H4:&%" j7
do get spherical aberration. ?A?F.n`
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