Venetian blinds as a version of sun-shelves to be used in hot and sunny climate conditions

摘要

Light-shelves, as a mean to distribute sun-ray’s flows, can be considered as a minor parts of venetian blinds. Light shelves, acting as light- spreading devices, spread sun light rays, transformed into diffuse light flows into the depth of a promise. The same function possesplanks of venetian blinds, though they have a much less geometry sizes. The aim of the investigations presented is to determine the optimum size of these planks and distance between them in order to ensure a maximum natural lighting of interiors under different sort of lighting, which is associated with different climatic regions or with different seasons of a year. The proposed solutions allow reducing electric power consumption in buildings.