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介绍了一种可将线阵半导体激光器的光束转换为光斑截面为矩形的准平行消像散光束的二元光学器件，并讨论说明其设计原理、加工制作方法、测试实验结果及应用。
A kind of binary optics which can convert the beam of a linear semiconductor laser to a quasi-parallel astigmatic astigmatic beam with a square cross-section is introduced. The design principle, fabrication method, test results and application are also discussed.