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qsj98:三种方法仅供参考: 'Ei;^Y 1e 1. 考查系统出射光线平行性; aZ\UrV4, 2. 加理想透镜,其焦距等于系统焦距; >E*$ E 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) `a9L%z
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