HoloPro™ is a transparent surface for rear projection that can be used at any time, even in high ambient light environments. The projection is directed onto the back of the screen from a specially calculated angle and distance and then is directed towards the observer by tens of thousands of holographic optical elements. The holographic information is stored on a photographic film, which has been specially processed with lasers, and then is embedded within glass, acrylic or foil carriers. Living projections attract observers.

HoloPro screens are obtainable in the standard sizes 20", 30", 40", 50", 60", 67", 84", and 100" in image format 4:3. On request, special sizes or shapes can be produced, in addition to screens with a 16:9 image format.

Holography (from Greek words meaning “whole writing”) is the science of producing holograms, an advanced form of photography that allows an image to be recorded in three dimensions. The technique of holography can also be used to optically store and retrieve information.

The light, which makes up a real scene is specified by its amplitude and wavelength as well as by its phase. In a hologram, both the amplitude and the phase of the light (usually at one particular wavelength) are recorded.

Once the film is laser cut and processed, if illuminated with a reference beam, diffraction from the fringe pattern on the film reconstructs the original object beam.

(Source: http://en.wikipedia.org/wiki/Holography)