Investigation Research on Lighting Environment Improvement of Outdoor Rescue Work at Night

本研究的目的是，了解夜间户外作业的照明条件差、目标物因素等对救援和医务人员造成的障碍，提炼出当前夜间医疗救助活动情况下的可见度和色彩条件问题，并提出改善照明环境的建议，以确保今后更好地开展救援和医疗活动。首先，对救援人员进行调查，提炼出灾情下视觉环境的需求和问题。应该注意的是，在光通量、照射面积和显色性方面存在差异。还应规范输入有关设备规格的信息。此外，我们还采集了健康青年和老年健康受试者在休克和充血状态下的光谱反射数据，并建立了准皮肤颜色图库，以确定灾难受害者皮肤在被埋在瓦砾中的情况下的视觉状况。在这样做的过程中，我们考察了性别和年龄的影响。此外，我们还发展了利用运动图像快速连续测量视野中亮度分布的方法，以评估夜间救援情况下的适应亮度。

The purposes of this study are, to understand obstacles for rescue and medical workers such as poor lighting conditions and visual object factors at night time outdoor works, to extract problems regarding visibility and color conditions under current situations of medical work relief activities at night time, and to make proposals for the improvement of the lighting environment in order to secure better rescue and medical activities in the future. First, we conduct survey to rescue workers to extract needs and problems of visual environment in disaster situation. One should take note that there are differences with regard to luminous flux, irradiation area and color rendering. There also should be standardized input of information on specifications of equipment. Moreover wereports collecting the spectral reflectance data and creating the color chart database of quasi-skins in shock and congested state by healthy young/ elderly subjects, in order to determine the visual conditions of disaster victim’s skin under a situation like buried in rubble. In so doing we examine the influence of gender and age. Also, we develop the methods of high speed continuous measurement of luminance distribution in the visual field using moving images in order to assess the adaptation luminance in the nighttime rescue situation.