本文介绍了用于测定遮阳材料太阳光学特性的各种仪器。它讨论了它们的功能、局限性和正确使用。研究了窗帘织物性能对太阳热增益的影响。提出了一种织物分类系统。附录I提供了用于快速确定玻璃和窗帘组合的阴影系数的方程式和图表。

This paper describes various instruments used for determining the solar-optical characteristics of shading materials. It discusses their capabilities, limitations, and proper use. The effect of drapery fabric properties on solar heat gain is studied. A system for classification of drapery fabrics is suggested.Appendix I provides equations and charts for rapid determination of shading coefficients for glass and drapery combinations.