Ray-tracing technique was utilized to derive the equations for the calculation of the transmissivity, absorptivity and reflectivity of single, double and multiple layer (s) of glazing.

• 摘要本研究使用光迹追踪法导出一系列的方程式可用来计算单、双及多层透明被覆材料之透光率，吸收率及反射率。