Light dances with matter to create a series of effects to our eyes, among which the most spellbinder is by far transparency.

Transparency is the property of a body to let light to move past. The opposite is opacity, and the intermediate condition is translucency. So, one of the characteristics that differentiates transparencies from each other is the greater or lesser degree of the amount of light that can pass through the material.

Visible light is an electromagnetic radiation made by a beam of quanta called photons.

The photon is the étoile of this dance: ethereal, has no mass nor electric charge, it tends to travel in a straight line through space. It has its own energy and wavelength. It is as if it had the double identity of particle and electromagnetic wave.

The most common ways in which light interacts with matter are absorption, reflection, diffusion, transmission and refraction which, combining with each other, further multiply the different transparencies.

Transparency enriches the aesthetics of objects, giving them an appearance that reminds us of precious stones, but is at the same time a fundamental technical property for everything related to lighting and safety.

Two interesting innovative areas of research concerning LED light and nanotechnologies are shown in the stand.

One is related to additives that, thanks to their nanometric dimensions, do not alter the transparency of the material but can transform the color of the light that travels through them, a very interesting feature because it allows to modify lights with a cold tone to warmer shades, more pleasant because they are less tiring.

The other concerns inks, derived from nanotechnological research, which when applied to a transparent material are activated and become visible only when the light is transmitted through (and not across) the material itself. When the light is switched off, both the inks become invisible and the support perfectly transparent again.

The exhibition is completed by other examples of transparent objects of great aesthetic mastery.

Partners of Materioteca in this edition are Direct3D, which presents a brand new, impressive development in 3D printing from granules of transparent materials, Neatech a supplier of transparent nanotechnological products to protect the surfaces of materials, and Plastic Finder which illustrates the new portal Certified Recycled Plastic®, a tool that gives transparency to the recycled plastic supply chains using blockchains.

In cooperation with