spherical aberration

基本解釋

A very small lens aperture is employed to correct spherical aberration , but this severely limits the final resolution.
可以用一個非常小的透鏡孔闌來校正球差，但這會嚴(yán)重地影響最終鑒別率。
Spherical Aberration -- causes light rays passing through a lens (or reflected from a mirror) at different distances from the optical center to come to focus at different points on the axis.
球差-使以不同孔徑角穿過透鏡(或從鏡面上發(fā)射)的光線不能聚焦在軸上的同一點。
A high quality Barlow must be properly designed and manufactured in order to avoid compromising a telescope's color and spherical aberration corrections.
一個高品質(zhì)巴盧必須妥善設(shè)計及制造，以避免損害望遠(yuǎn)鏡的顏色和球面像差改正。
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a defect of optical systems that arises when light striking a mirror or lens near its edge is focused at different points on the axis to the light striking near the centre. The effect occurs when the mirror or lens has spherical surfaces