ROLL SCREEN APPARATUS

摘要

PURPOSE: A roll screen apparatus for an awning is provided to reduce a cooling load in the summer and to reduce a heating load in the winter depending on the altitude difference of the sun. CONSTITUTION: A roll screen apparatus(100) for an awning comprises a screen buried box(102), a screen(104), and a weight bar(106). The screen is divided into multiple sections. Prism lenses with different projection angles are embedded in the divided sections. The screen selectively penetrates or reflects a part of sunlight depending on the altitude difference of the sun.