He builds optical system that can bring performers of the past back to life on stage . Maass 's main innovation is to replace the glass used in original systems with an invisible polymer foil to offer a more substantial image while also allowing the stage behind to remain visible . Musion Eyeliner is based on a Victorian - era light projections system of Shakespeare 's Ghost . New system uses an invisible polymer layer to offer a more substantial image .
He builds optical system that can bring performers of the past back to life on stage . Musion Eyeliner is based on a Victorian - era light projections system of Shakespeare 's Ghost . New system uses an invisible polymer layer to offer a more substantial image .