1995 Volume 79 Issue 11 Pages 656-664
This paper describes an attempt to represent three-dimensional color distribution in lighting rooms using Monte Carlo simulation (MCS).
Generally speaking, the lighting space is usually expected to have different spectral radiant exitances and color distributions in various positions throughout it, since lighting rooms have many types of light sources and room surface walls with various spectral properties.
Because the human being perceives a color stimulus with his eyes from a wide visual field, it is important to discuss three dimensional color distribution with regard to human vision at any point in the lighting space.
A formulation for the Monte Carlo simulation technique is performed to estimate three dimensional color distribution as quantitively as possible. Firstly, the model room is composed of imaginary 1, 000-unit subdivisions formed by uniformly dividing the lighting room into many single unit spaces. Next, the three-dimensional color distribution on six specified surfaces of a single unit space in the lighting room is investigated by using MCS
It was found that spectral radiant exitance distributions on both sides of the imaginary partitions are quite variable according to their positions and human perceptual location, so three-dimensional color distribution is also complicated by variations in these factors.
