Near-infrared afocal laser beam expanding system with large zoom ratio

@article{Jingfei2013NearinfraredAL,
  title={Near-infrared afocal laser beam expanding system with large zoom ratio},
  author={叶井飞 Ye Jingfei and 高志山 Gao Zhishan and 叶海水 Ye Hai-shui and 刘晓莉 Liu Xiao-li and 成晓强 Cheng Xiao-qiang},
  journal={Optics and Precision Engineering},
  year={2013},
  volume={21},
  pages={1129-1136}
}
To explore lightning properties,a near-infrared afocal continuous zoom laser beam expanding system with large zoom ratio was designed to simulate lightning spot elements with different sizes for the lightning scene in a laboratory.On the basis of Gaussian geometric method,the overall dimensions of the system was calculated and the diameters and focal powers of lenses were determined reasonably.By using ZEMAX optical design software,optical structural parameters of the system were optimized,then… Expand