Abstract: A louver-blind double glazed window unit comprises a frame defining first and second faces of the unit with respective first and second windows mounted thereto, and outer side and inner sides. An inner chamber is defined between the frame and the first and second windows. Louvers extend within the chamber and are pivotally mounted to the frame. An actuator assembly is positioned within an operating part of the frame for pivoting the louvers between open and closed positions. An inner magnet is positioned at the inner side of the frame. An external manual operator is movably positioned on the outer side of the frame and comprises an outer magnet magnetically communicating with the inner magnet. Moving the external manual operator along the outer side of the frame causes the inner magnet to move in tandem therewith thereby actuating the actuator assembly to pivot the plurality of louver members.

Abstract: A louver blind structure comprises a frame with a plurality of louver members pivotally mounted at each longitudinal end thereof to the frame so as to pivot between open and closed positions. An elongated member is movable relative to the frame and is so positioned as to engage the louver members. An actuator is mounted to the frame for selectively imparting a movement to the elongated member. When imparting a movement to the elongated member the louver members engaged thereby are caused to pivot between the open and closed positions. A kit comprising this actuator and the elongate member for a louver blind structure is also provided.