描述了激光高斯光束传输及变换的特性,从工程角度出发,着重研究激光聚焦后的焦斑位置、焦斑大小和焦深等因素对激光切割质量的影响,并提出聚焦镜座结构设计的关键问题,确定了激光切割机床光学设计参数的若干选择原则,并通过大量激光切割试验得出相应的结论. Describes the characteristics of laser Gaussian beam transmission and transformation. From the engineering point of view, focusing on the laser focal spot position, focal spot size and focal depth and other factors on the quality of laser cutting, and put forward the key to focus lens holder structure design Problems, determine the laser cutting machine optical design parameters of a number of selection principles, and through a large number of laser cutting test draw the corresponding conclusions.