N 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 球面像差 [physics]
Spherical aberration can damage image quality in photolithography.
球面像差能破坏光刻的成像质量。
Elevation difference by trigonometric leveling shall be corrected by spherical aberration.
三角高程测量高差值应进行球差改正。
A very small lens aperture is employed to correct spherical aberration , but this severely limits the final resolution.
可以用一个非常小的透镜孔阑来校正球差，但这会严重地影响最终鉴别率。
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