Venetian blind

A Venetian blind is a made up blind in horizontal plates, located in a scale out of wire and of a mechanism of raising and orientation of the plates.

The plates are generally out of metal, but one also finds some out of plastic or wood.

The width of the plates is slightly higher than their line pitch, which allows, by swivelling of the plates, to occult surface completely to be protected.

The old models consisted of broad plates (several centimetres), but the tendency is to decrease their size (up to 1,5 cm), at the same time for reasons of esthetics and obstruction, but with the detriment of the price.

The Venetian blind is folded up to the top, by stacking of the plates. The sight then is completely released.

Advantages

the Venetian blind is compact
It can occult the light very effectively, but also makes it possible to very finely modulate the luminosity while controlling the possibility of seeing or of being considering. For example, in a ground floor, by directing the blades upwards, one can receive solar light without attenuation almost, while preventing the passers by from seeing in the house.

Disadvantages

the Venetian blind is relatively expensive, especially in the versions where the blades are thinnest, and if it is made to measures in order to be more close possible edges of the opening.
It is adapted only to rectangular surfaces

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