STUDY ON THE BASIC LIGHTING DESIGN METHOD FOR BUILDINGS ENERGY EFFICIENCY WITH QUALITY BY THE SPATIAL DISTRIBUTION OF LUMINOUS FLUX

摘要

The main purpose of this study is to establish lighting design method that can consider lighting energy efficiency with confirming the spatial light distribution in a room by distributing the luminous flux from natural daylight from window and artificial lighting from ceiling light, etc., respectively. As a basic consideration for such purpose, we show the establishment and trial of a method of luminous flux distribution in a residential room having a single window and the framework of design method of luminous flux distribution in an office room equally having a single window. As a result, it was shown that the validity of evaluation for lighted environment by the vertical wall plane based on trial calculation in the residential room, and the way of simplified luminous flux distribution design by zoning in the office room. Moreover, through luminous flux, it becomes easy to consider the balance of daylighting and artificial lighting in the early planning stage of the building from the viewpoint of appropriate spatial distribution of light.