Abstract
The aim of this paper is to analyze how introducing Heat-reflective glass, which are used in many large cities in the world, generates the sky reflected on it through a simple mathematical model. First, we formulate the section model to understand the fundamental relationships between the reflected sky and the observation location, the building height and the road width. Second, we propose the anlaytical method to compute the solid angle of the reflected sky for any rectangular parallelopiped. We show the simple illstrative example how the solid angle is affected by the observation location, the building height and the road width.
