Visual field analysis for night-time drivers

Abstract

The determination of observer´s adaptation luminance based on luminance distribution in the observer´s field of view and the adaptation of the human eye in a current question occupying lot of research teams worldwide. The impetus for the development of this matter is especially the need to determinate the adaptation luminance in order to calculate and determinate the adaptation performance (vision) in terms of mesopic vision. The aim of this paper is not to accurately determine the process of vision adaptation, but to analyze the observer´s field of view luminance distribution – especially of a driver at night. Measurements and luminance distribution evaluations of different types of roads and light situations were carried out with the goal to discuss this issue and discover how big the luminance differences are and to what situations of the surroundings the eye must adapt to during a ride.