Measurement of luminance discrimination threshold for positive and negative contrast stimuli to investigate visibility under the tunnel entrance lighting
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 adaptation. No significant difference is observed between the results of positive and negative contrast stimuli under the light adaptation conditions employed in this study.
Luminance contrast Visibility Contrast polarity Tunnel lighting Total revealing power
Ito, H. Sato, M. Oshima, A. Yamada, S. Ayama, M.
Matsushita Elec.Works Central Nippon Expressway Co. Utsunomiya University
国际会议
26th Session of the CIE(国际照明委员会(CIE)第26届大会)
北京
英文
844-847
2007-07-04(万方平台首次上网日期,不代表论文的发表时间)