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目的探讨不同环境光条件下飞行员认读夜视兼容绿光LED导光板字符的适宜亮度,尝试建立夜视绿导光板的自动亮度曲线模型。方法以108名战斗机飞行员为受试者,构建亮度可调的LED夜视兼容导光板和LED模拟环境光源作为实验设备。在每一档环境照度条件下,受试者分别调节出认读导光板字符所需的最低亮度、适宜亮度和所能耐受的最高亮度。结果初步建立了P5、P50和P95百分位飞行员最低亮度、适宜亮度和最高亮度的自动亮度曲线模型。结论本文建立的飞行员自动亮度曲线模型的工程化应用,尚需用户的使用性验证,并对曲线模型进行微调或修正。
Objective To study the appropriate brightness of pilots who read night vision compatible with green LED light guide plate under different ambient light conditions and try to establish the automatic brightness curve model of night vision green light guide plate. Methods A total of 108 fighter pilots were chosen as experimental subjects to construct a brightness - adjustable LED night vision compatible light guide plate and LED simulated ambient light source. Under each ambient illumination condition, the subjects adjusted the minimum brightness, the appropriate brightness and the maximum brightness that can be tolerated for reading the light guide plate characters, respectively. Results The automatic brightness curve model with the lowest brightness, the best brightness and the highest brightness for P5, P50 and P95 pilots was initially established. Conclusion The engineering application of the automatic pilot brightness curve model established in this paper still requires the user’s usability verification and the fine tuning or correction of the curve model.