Abstract: The present invention relates to a modular window unit for an aircraft comprising a nonopaque lens and a reveal, the reveal joining the lens, as well as a shade comprising a multiplicity of discrete elongated panels, each panel cooperating with one another and being movable between an open and a closed position. The panels lay one next to the other to substantially cover the lens when the window shade is closed and, in an open position, lay stacked atop each other to substantially uncover the lens. Electric motors are provided for moving the panels of the shade between the open and closed positions.