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2011-01-01 16:21 |
找到參考資料了。 N-_2d*l 3
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From Smith, Modern Lens Design, 2nd ED, page 4 b4oZ@gVR;
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Are aspheric surfaces free of aberration? 1eiH% {w
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have j&Z:|WniK
no spherical aberration if the object point is at one focal point and the h r* KDT^!
image is at the other. But if we depart from this condition we definitely Q8z>0ci3o
do get spherical aberration. If]g6
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