Road surface`s reflection characteristics measuring apparatus for calculating desired luminance performances of lighting installation, has light sources with optical systems positioned along respective incidence angles for lighting surface

摘要

The apparatus has light sources equipped with optical systems positioned along respective incidence angles so as to light a circular surface at the level of ground. A set of photovoltaic cells has support tubes for measuring reflected light, where each cell is oriented along a different angle with respect to the surface to be measured. Each light source has an additional photovoltaic cell for self-calibrating the light source. Independent claims are also included for the following: (1) a method for characterizing reflection properties of a surface for calculating desired luminance performances of a lighting installation (2) a computer-assisted analysis method for comparative analysis of reflection characteristics of a road surface.