微光夜视系统具有功耗低、重量轻、图像质量符合人眼观察习惯等应用优势，目前仍是世界各国使用最广泛、装备量最大的军用夜视装备。随着微光夜视系统核心器件——像增强器动态范围的不断扩大，对有效开展系统强光适应性试验提出了新的要求。为准确、客观评价大动态范围夜视系统的强光适应性能，本文从理论上修正了光学系统中像增强器阴极面照度的计算模型，并依据像增强器强光性能参数，设计了试验方法。经外场试验验证，该方法可以较为准确评价大动态微光夜视系统强光适应性，可为微光夜视装备强光适应性试验提供技术支撑。

Low light night vision systems have the advantages of low power consumption, light weight, and image quality in line with the observation habits of human eyes. These systems are still the most widely used military night vision systems in the world. With the expansion of image intensifier dynamic range, novel requirements have been established for effective testing of strong light adaptability. To accurately and objectively evaluate strong light adaptability of night vision systems with large dynamic range, the calculation model of image intensifier cathode illumination in the optical system is modified theoretically. The proposed method can accurately evaluate the strong light adaptability of large dynamic range night vision systems and provide technical support for strong light adaptability testing of low light night vision equipment.