Light trespass into floodlit buildings in relation to the requirements of the Polish standard

Abstract

The main aim of this paper is to define the quantitative nature of a new parameter which is called penetrating luminous flux. It is made by the measurement of illuminance on the windows of an actual floodlit object. Additionally, the results of field measurements and simple computer simulations are compared with the valid requirements of the Polish standard connected with light trespass and the light pollution. The results are also carefully commented upon from the point of view of the lighting designer. The object which forms the basis of the analysis in this paper is the Centre for Foreign Mission Veterans in Warsaw.