MULTI-PIECE COMBINED LIFTING LOUVER BLADE

摘要

The disclosed is a multi-slat combination blind of up-down-movement type which includes a main slat (1) and a lifting slat (2). The cross section of the lifting slat (2) in the width direction has the same shape as that of the main slat (1) in the width direction. The lifting slat (2) is attached on the upper or lower surface of the main slat (1). The lifting slat (2) can be driven to lift together with the main slat (1) and also to lift relative to the main slat (1) by a lifting mechanism. Various sun-shading and light-guiding blind systems formed by the multi-slat combination bind of up-down-movement type can achieve the optimization of controlling retro-reflection and guiding volume of direct sunlight according to season change and specific requirements of persons. High transparency is simultaneously kept whether solar elevation angle is high or low.