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可见光电视在激光制导武器投放系统和远距离识别应用中起着日益重要的作用。水蒸汽、微粒(尘埃和烟雾)以及分子或瑞利散射所引起的大气散射,使图象的对比度随着距离的增大而急剧下降。例如,在有轻微霾雾天气条件下,很容易使有80%对比度的目标减小到相当于10公里距离下的1%的对比度。由于硅光导摄象管有发热电阻,而且更重要的是有宽光谱响应和高的量子效率,使它在军事应用方面有利,特别是其光谱响应宽,和量子效率高,能滤去较短的波长,从而使对比度得到很大的改善。然而目前的硅二极管阵列光导摄象管本身有不规则的成形污斑,即局部区域灵敏度不一样。这种差值的幅度可达5%,并且形成一种固定型的噪声源。
Visible light television plays an increasingly important role in laser guided weapon delivery systems and remote identification applications. Water vapor, particles (dust and smoke), and atmospheric or Rayleigh scattering caused by atmospheric scattering, so that the contrast of the image with the distance increased sharply dropped. For example, it is easy to reduce the target of 80% contrast to a contrast of 1% at a distance of 10 km in light haze conditions. Since silicon photoconductive tubes have a heating resistor and, more importantly, a wide spectral response and high quantum efficiency, make it advantageous for military applications, in particular its broad spectral response and high quantum efficiency, Of the wavelength, so that the contrast has been greatly improved. However, the current silicon diode array photoconductive phototransistor itself has irregular shaped spots, that is, the sensitivity of the local area is not the same. This difference is up to 5% and forms a fixed noise source.