找到參考資料了。 ]2LXUYB
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From Smith, Modern Lens Design, 2nd ED, page 4 =g >.X9lr
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Are aspheric surfaces free of aberration? )7k&`?Mh
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The conic aspherics (e.g., paraboloid, ellipsoid, hyperboloid, and the sphere) have D {Oq\*
no spherical aberration if the object point is at one focal point and the RrKfTiK H
image is at the other. But if we depart from this condition we definitely TbMdQbj}
do get spherical aberration. .<HC[ls