Pane for solar protection, daylighting and energy conservation

摘要

The pane for solar protection, daylighting and energy conservation is a pane system consisting of two prismatic panes. The prismatic ribs of the panes are inclined by a certain angle to the horizontal within the window plane, exhibit identical cross-sections in the shape of a rectangular triangle with a certain basic prism angle &thgr;, are facing each other and are engaged such that just a small gap remains between both of the panes. The faces s_A of the prismatic ribs are coated with a specularly reflecting layer and the faces s_B of the prismatic ribs are coated with a diffusely reflecting layer.;The prismatic pane system can be applied for common window inclination angles &ngr; and for window directions with essential solar irradiation at sites of temperate climate. It does not essentially reduce the view to the outside, achieves—in comparison to other window panes—a relatively uniform illumination of a room with daylight and during the summer and the transition periods an improved protection from solar irradiation and distinctly reduced irradiated heat quantities. The reflecting faces of the prismatic ribs do not create a glare effect.