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2011-01-01 16:21 |
找到參考資料了。 W!"Oho'
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From Smith, Modern Lens Design, 2nd ED, page 4 C[';B)a
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Are aspheric surfaces free of aberration? 1\%@oD_zG
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have W7c
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no spherical aberration if the object point is at one focal point and the ^ZIs >.'
image is at the other. But if we depart from this condition we definitely J 7sH]
do get spherical aberration. liqVfB%
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