forums energies: society, ecology and clean technologies

published: **06/04/12, 18:04**

Discovered in this video: http://www.youtube.com/watch?v=Of0OyttrhFk

Priva Lite "electric" glazing with "variable translucency" ...

Manufacturer's sheet: http://befr.saint-gobain-glass.com/b2c/ ... e&id=10780

PRIVA-LITE

Activate the transparency of the glazing yourself!

Benefits

* You go from transparency to opacity: immediate privacy at the touch of a button.
* You can combine it with functions such as burglary retarder, sound insulation and fire protection.
* You consume very little energy to activate it.
* You block almost all ultraviolet rays.

Where to use it?

* Interior: partition, door, glass slab, counter and protective screen.
* Exterior: window and facade, in single glass or high efficiency glazing.
* In opaque situation as a projection screen.

What is it ?

SGG PRIVA-LITE is a laminated glazing with controllable transparency. Between the glass sheets is a film containing liquid crystals (LC). Under the influence of an electric current, the crystals orient themselves and the glazing immediately becomes transparent. Without electrical voltage, the crystals are in a disordered position and the glazing has an opaline appearance. It is then opaque, while allowing light to pass through.

Not bad against solar overheating in summer! On the other hand I wonder how much it costs per m² ... can not be more expensive than window + blinds (overpriced for some models when you want non-standard dimensions ...)

published: **06/04/12, 22:12**

Prepare the mop to absorb the liquid in case of glass breakage : Mrgreen:

published: **06/04/12, 22:28**

Dixit the manufacturer's file:

It is then opaque, while allowing light to pass through.

They might be good technicians, but they really write nonsense!

published: **07/04/12, 01:38**

It is opaque, by diffusing the light, on the defects of the liquid crystal under tension, so that no shape is recognizable through the glass (in fact translucent), but the light nevertheless passes, after multiple diffusions. We say an opaque glass,
It is scientifically clear, in conciseness.

As with liquid crystal displays, there is not a lot of liquid, and it is certainly a lot cheaper, because what is expensive is the multitude of points to be ordered in a display, whereas there is no There is only one large area in the glass.

published: **07/04/12, 10:23**

Ahmed wrote:Dixit the manufacturer's file:
It is then opaque, while allowing light to pass through.

They might be good technicians, but they really write nonsense!

Isn't that what we call "translucent" by chance? : Cheesy:

published: **07/04/12, 12:04**

The application of the technology is cool, but I have doubts about the longevity of the thing for exterior glazing on the south side.
When you see the face that the small LCD display of a car watch makes after a few years in the sun, I wonder what it looks like on a window of this size.
Did they manage to solve the problem, or is it something they "forgot" to take into account?

published: **07/04/12, 17:11**

Forhorse asks himself:

Did they manage to solve the (longevity) problem, or is it something they "forgot" to take into account?

They only "forgot" to talk about it!

@ Christophe: Translucent, but yes, of course! : Mrgreen:

Where were they headed? Maybe they are obsessed with the worms of Corneille a pair

... that dark light that falls from the stars ...

forums energies: society, ecology and clean technologies

Priva Lite glazing with variable transparency (electric)

Priva Lite glazing with variable transparency (electric)