进一步增大主动红外夜视仪视距的途径

The Ways of Further increase of the Observation Distance for an Active Infrared Viewer

本文根据主动红外夜视仪的视距公式讨论了影响视距的各种因素，对进一步增大视距指明了方向。寄希望于阴极红外灵敏度获得突破性的进展；改进光源结构，提高光能利用率和减小发散角是增大视距的主要途径。

Venous factors of interfence of the observation distance are discussed according to the formula on the observation distance for an active infrared viewer. Main ways for further increase of the observation distance are present,i. e. to place hope on big increase of the infrared sensitivity of s1 photocathod and to improve the structure of the searchlight power from the light source and to decrease divergence of the light-beam.