coma aberration

基本解釋

For large primary coma aberration, interference fringe presents.
大的初級(jí)彗差使焦平面出現(xiàn)干涉條紋。
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It is difficult to determine exactly an geometrical value of coma aberration by method of star-testing.
直接用星點(diǎn)法不易準(zhǔn)確測(cè)定慧差的幾何值。
As a result of shape change and groove density variation, it not only improves the focusing condition, but also affectes higher order aberrations such as coma aberration of the imaging system.
由于光柵面形及其線密度的變化，不僅對(duì)光柵成像的聚焦特性有所改善，對(duì)彗差等高階次像差的影響也是不可忽略的。

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