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2011-01-01 16:21 |
找到參考資料了。 rD4 umWi
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From Smith, Modern Lens Design, 2nd ED, page 4 aA52Li
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Are aspheric surfaces free of aberration? d)bsyZ;U
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have mICEJ\`x
no spherical aberration if the object point is at one focal point and the xQDQgv wa
image is at the other. But if we depart from this condition we definitely A] 'jsv!+
do get spherical aberration. .,p=e$x]
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