Patent ID: 7284587

Claim:
A blind comprising: a light-passable blind body fixedly attached to one side at a bottom of a head-rail to be actuated by pull cords, and a plurality of black-out pieces sequentially fixed in an equal space at one side of the light-passable blind body from top to bottom thereof wherein at the bottom edges of the black-out blind pieces are respectively equipped with two or more than two movable members that, each having a retaining through hole disposed thereon, are vertically lined up for actuation cords to sequentially thread there-through and tie up to each retaining through hole thereof respectively; a plurality of guide sliding seats are properly mounted at both top lateral sides of the head-rail respectively, and a pull cord positioning seat and an actuation cord positioning seat are symmetrically jointed at one end of the head-rail for the pull cords and the actuation cords led through the guide sliding seats disposed at both lateral sides of the head-rail to wind around respectively before hanging downwards there-from to suspend symmetrically at the front and rear sides of the light-passable blind body thereof; in practical use when the black-out blind pieces are raised upwards by the actuation cords towards one side of the head-rail, the light-passable blind body will be revealed in sections through the uplifted black-out blind pieces, permitting light to come partially indoors according to the position of the raised black-out blind pieces, or views outside to be easily seen there-through; the blind is adjustable between a plurality of positions selected from a group comprising completely collected, expanded in a total black-out status, synchronically adjusted to provide partial light, and synchronically adjusted to provide partial black-out effects; via the number of the actuation cords drawn upwards and the movable members or the guide sliding seats detachably mounted and freely adjusted in positions, the black-out blind pieces are flexibly lifted upwards to a plurality of angles.