| 摘要 |
An window covering is disclosed. The window covering comprises a first roller and a spaced apart second roller mounted in a window frame. A first sheet is connected to the first roller at its trailing edge and a second sheet is connected to the second roller at its trailing edge. Each flexible sheet is movable from a stowed position, where it is coiled around a corresponding roller to a deployed position where it is drawn away from the roller to cover the window. The rollers bias the sheets toward the stowed position. The leading edges of the sheets may be removably connectable so that, when deployed together, the sheets cover the window between the rollers and resist being pulled into the stowed position. At least a portion of the first sheet permits more light to pass through than the second sheet.
|
