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一台激光远场CCD诊断装置，工作波长1053nm,光学孔径φ250mm；联接计算机及脉冲同步的科学CCD相机接受系统，最后得到的远场光斑图像被计算机实时地处理和显示．装置在应用于测量激光远场发散角时，必须做好如下关键技术：1）装置内各光学元件的高质量检测和低像散传输，准确地
A laser far-field CCD diagnostic device, the working wavelength of 1053nm, optical aperture φ250mm; connected to the computer and pulse synchronization science CCD camera to accept the system, the resulting far-field spot image is processed and displayed by the computer in real time. When the device is used to measure the laser far-field divergence angle, the following key technologies must be done: 1) high-quality detection and low astigmatism transmission of each optical element in the device, accurately