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qsj98:三种方法仅供参考: o2 d~ 1. 考查系统出射光线平行性; #@^w>D6W 2. 加理想透镜,其焦距等于系统焦距; Uob |Q=MQ 3. 光路反向计算,即系统倒置,从无穷计算到焦平面。....... (2013-07-31 22:50) `HG19_Z
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