Saint-gobain Vitrage

Saint-gobain Industries

Norbert Bartonitscheck

Franz Kraemling

Wilbert Windeln

Manfred-Andreas Beeck

Jakob Nieven

Gunther Mattes

A holographic mirror is made by a process of continuous exposure. For this purpose, a photosensitive layer (10) is exposed strip by strip in a direction crosswise to that in which the layer is exposed by two interfering beams (6, 6'). Film (11) bearing photosensitive layer (10) is continuously moved in the longitudinal direction (F) at a speed that ensures sufficient exposure of the layer. The procedure makes it possible to produce holograms of any length in one direction.

Method for making a holographic mirror

This invention relates to a window with increased resistance to fire, consisting of at least one pane of glass, such as soda glass, mounted in a metal frame in such a way that during a fire the border and edge of the side exposed to the action of heat, or in some cases the borders and edges of both sides, are exposed to the heat.

Fire-proof window

Growing community of inventors

Stolberg, Germany

Norbert Bartonitscheck