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本文根据半导体激光束的像散椭圆高斯光束特性，设计实用的半导体激光束准直系统的光学结构，并给出其参数计算的正确公式，修正了文献[5～8]中相应的公式．
In this paper, the optical structure of a practical semiconductor laser beam collimation system is designed according to the astigmatic elliptic Gaussian beam characteristics of a semiconductor laser beam. The correct formula for its parameter calculation is given, and the corresponding formulas in [5 ~ 8] are revised.