During the last 20 years, video-projectors has changed significant and projection-screens has changed accordingly. 

With todays projectors, often delivering more than 1000-1500 ANSI-lumen per sq.metre, some of the energy can be used to illuminate "see-through"-glass.

Earlier this was made by small and expensive holographic printing, but with our special developed micro-lenses our HoloScreen can deliver the same effect for a split of the cost by real holographic screens.