It is a system with two types of blades: fixed and mobile. The first offers fixing possibilities in angles of 0º, 15º, 30º and 45º. The movable blades can be operated mechanically and, optionally, the adjustment mechanism can be hidden, obtaining a special façade look. The blade used has an elliptical shape and its layout can be vertical or horizontal. This unique elliptical shape allows both to avoid the less beneficial effects of the sun and to create a decorative architectural element. This sun protection system is especially suitable for large surfaces such as façades and curtain walls.