In another paper of the conference, Vos and Padmos argued that straylight from atmosphere and windscreen surpasses ocular straylight in its masking effect on visibility in tunnel entrances. Additional information is given here about the research on which their data is based.
In: Proceedings of the 20th Conference Session of the International Commission on Illumination CIE, Amsterdam, 31 August-8 September 1983, Volume 1, p. E40/1-2, 1 fig., 3 tab., 2 ref.
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