绍介半导体激光束的准直整形方法，阐述半导体激光水准仪的设计方案。
Describes the ways to collimation and distortion of the semi conductor laser beam, and the designing plan of semi conductor laser water level matter.
采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。
By using the light ray vector method, the elliptic-section cylinder lenses have been designed to collimate the semiconductor laser beam.
分析像散椭圆高斯光束的传输变换特性，推导出半导体激光束的像散校正与旋转对称化变换公式。
In view of the above, the transformation properties of astigmatic elliptic Gaussian beams are analysed overall, the exact formulas of correcting astigmatism and rotary symmetrize transformation.
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