MEASUREMENT OF LUMINANCE DISCRIMINATION THRESHOLD FOR POSITIVE AND NEGATIVE CONTRAST STIMULI TO INVESTIGATE VISIBILITY UNDER THE TUNNEL ENTRANCE LIGHTING
作者单位：MatsushitaElec.Works CentralNippon Expressway Co. UtsunomiyaUniversity UtsunomiyaUniversity UtsunomiyaUniversity
会议名称：《26th Session of the CIE》
会议日期：2007年
学科分类：081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程]
关 键 词：Luminance contrast Visibility Contrast polarity Tunnel lighting Total revealing power
摘 要：正We measured luminance contrast threshold for positive and negative contrast stimuli under the adaptation level comparable with that when a car driver is accessing tunnel entrance in day time as well as under the dark *** significant difference is observed between the results of positive and negative contrast stimuli under the light adaptation conditions employed in this study.