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2011-01-01 16:21 |
找到參考資料了。 v;fJM5PA
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From Smith, Modern Lens Design, 2nd ED, page 4 .lvI8Jf~X
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Are aspheric surfaces free of aberration? N4a`8dS|
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have vQK n=
no spherical aberration if the object point is at one focal point and the BEXQTM3])I
image is at the other. But if we depart from this condition we definitely VelB-vy&
do get spherical aberration. msc 1^2
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