| 释义 |
〔defocus〕To cause (a beam or a lens) to deviate from accurate focus.（使）散焦：使（一束光或一个透镜）从准确的焦点上偏散开来〔anastigmatic〕Free from astigmatism. Used of a compound lens in which the separate components compensate for the astigmatic effects of each lens.消像散的：消像散的。用于复合透镜，其中分隔部分抵消了每一个透镜的散光效果 |