Automatic Venetian Curtain
An Automatic Venetian Curtain is a blind made up of horizontal slats, located in a wire ladder and an auto mechanism for lifting and orienting the slats. The slats are generally made of metal (especially aluminum), but there are also plastic or wood. The width of the slats is slightly greater than their vertical spacing, which makes it possible, by pivoting of the slats, to completely obscure the surface to be protected. The Automatic Venetian Curtain folds upwards, by stacking the slats. These are mounted on a cable system connected to a dual control; manual and automatic. A command to wind or pull the cables together, which brings up the last slat, the other slats then stacking on it, we can thus discover the lower part of the bay. A command to offset the cables supporting the front of the slats with respect to the cables supporting the rear of the slats: this makes it possible to change their inclination and therefore to adapt the light which filters through them. Once the Automatic Venetian Curtain is folded up, the view is completely unobstructed. The old models were made of wide slats (several centimeters), but the tendency is to reduce their size (up to 1.5 cm), both for aesthetic reasons and space, but at the expense of price. Benefits: The Automatic Venetian Curtain takes up little space. It can obscure light very effectively, but also allows the brightness to be modulated very finely while controlling the possibility of seeing or being seen. For example, in a ground floor, by orienting the slats upwards, we can receive sunlight with almost no attenuation, while preventing passers-by from seeing into the house. The Automatic Venetian Curtain is also the blind with the best thermal and acoustic properties, which made it the blind of choice for American skyscrapers of the 1930s.