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微光夜视仪的最大作用距离是它主要的技术指标和进行系统设计的主要依据。根据前人的研究,系统总结了微光夜视系统的视距公式。为改变微光夜视系统易受外界影响的缺点,一般需要再加入激光助视系统。加入激光助视系统之后光源的类型发生变化,视距公式也会随之发生改变,其中最主要的是光谱匹配系数的变化,还有照度、对比度、反射率等都随之发生变化。详细分析了加入激光之后视距公式中各因子发生的变化,为合理选择激光类型提供理论参考。并且估算了头盔式微光夜间驾驶仪(其中所用光电阴极为超二代管)在激光助视下的视距。验证了选取激光类型的合理性。
The biggest role of glimmer night vision distance is its main technical indicators and the main basis for system design. According to previous studies, the system summarizes the line of sight of the glimmering night vision system. To change the glimmer night vision system vulnerable to the shortcomings of the outside world, generally need to join the laser imaging system. After adding the laser-assisted vision system, the type of light source changes and the line-of-sight formula changes. The most important factor is the change of spectral matching coefficient, as well as illumination, contrast, reflectivity and so on. The change of each factor in the line-of-sight formula after adding laser is analyzed in detail, which provides a theoretical reference for choosing laser type rationally. And estimates the line-of-sight of a helmet-type glimmer night-vision pilot (in which the photocathode used is a superdetector) in laser aided sight. Verify the rationality of choosing the type of laser.